Baby Size by Week According to Millennials, Not Fruit

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Baby at 4 Weeks

Your Baby is the Size Of a Spec of Glitter

A lot of people don't discover they're pregnant until around 6 weeks (unless you're tracking your cycle with an app), so it's pretty plausible that you're still going out as normal with friends at 4 weeks—blissfully ignorant of your big news. If you wake up the next morning with a spec of glitter leftover from last night's eye shadow, don't just wash it away. Why? That's about the size of your tiny, tiny embryo at week four. For reference that's 0.014 to 0.04 inches in length and not quite 0.04 ounces. And the best part? The pregnancy party's just getting started.

Week 4 Ultrasound: What It Looks Like

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Baby at 5 Weeks

Your Baby is the Size of the Heart Button On Instagram

While it might feel too soon to announce your pregnancy to the masses, you may be daydreaming about the huge collection of 'likes' you're going to create when your friend-and-family fan-base knows about your big news. While you're strolling through Instagram (shamelessly looking at baby shower ideas, strollers, and tiny baby clothing), take a moment to admire that heart-shaped like in the corner. That's how big your babe is at 5 weeks, with actual specs at 0.05 inches and 0.04 ounces. Coincidentally, this is also when your baby's brain, spinal cord, blood vessels, and actual heart are all starting to develop.

Week 5 Ultrasound: What It Looks Like

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Baby at 6 Weeks

Your Baby is the Size of a Hashtag

While the only type of social media you've considered posting lately is #MorningSicknessLastsAllDay, that baby you're growing is already becoming social-media-savvy. Though it might be a while before they steal your iPad or school you on the latest app that all the little kids are babbling about, right now, they're the size of the hashtag you type on your phone. That means they're ⅛ of an inch long and about 0.04 ounces. If you want to tell them about what's trending on Twitter, go ahead, because their ear canals are forming now and their heart is pumping blood and beating at about 80 times a minute.

Week 6 Ultrasound: What It Look Like

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Baby at 7 Weeks

Your Baby is the Size of the Tip Of Your Eyeliner Brush

Yeah, you did wake up like that: feeling a little nauseous and a little amazed by the size of your breasts (did you know some people can go up a full cup size by week 7?!). But as you go through your morning routine before getting to work in your comfiest clothes, glance at your eyeliner brush. That tip at the end (that you dip into your go-to shadow shade) is how big your growing baby is right now. At half an inch and 0.04 ounces, they're developing the start of their arms, legs, face, kidneys, mouth, and tongue.

Week 7 Ultrasound: What It Looks Like

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Baby at 8 Weeks

Your Baby is the Size Of an iPhone App Icon

We know your style: you're the first to research the best pregnancy apps that all the celebs are using to track their babe. And you probably just *had* to add Pinterest back to your most frequented apps because, hey, planning for baby's wardrobe and nursery is the only thing that takes your mind off morning sickness. Next time you open up Instagram, check out the size of the app icon—that's the size of your baby this week! At 0.63 inches and 0.04 ounces, you probably wish you could use your camera app to snap a photo of your growing embryo, which now is starting to develop an upper lip, hands, feet, nose and eyelids.

Week 8 Ultrasound: What It Looks Like

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Baby at 9 Weeks

Your Baby is the Size of a Sushi Roll

It's one of those sad, harsh truths about being pregnant: No raw fish for you! Though you can technically eat a roll if it's veggie or fully-cooked (hello, California roll)—many parents-to-be tend to take a bit of a break from their fave Japanese takeout for a few months. But if your partner is over there chowing down, go ahead and admire their dinner because one piece of that sushi roll is about the size of your baby, at 0.90 inch and 0.07 ounces. You can now likely hear baby's heartbeat at your next ultrasound—#AboutFreakinTime!

Week 9 Ultrasound: What It Looks Like

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Baby at 10 Weeks

Your Baby is the Size of a Mini Cocktail Sausage

Hey, it's OK if you're feeling a little bloated (and noticing your veins are starting to show as you stretch out more) and feel a little sausage-y squeezing into your old clothes. It's normal to feel tired and to take time getting used to your changing body. Plus, consider this: at 10 weeks, your baby is the size of a mini cocktail sausage (ya know, the ones you get on a toothpick at parties?). They're also starting to develop their bones, cartilage, and tooth buds as they continue to gain weight and grow, at 1.22 inches and 0.14 ounces. They also develop their neck, eyelids begin to close to protect their developing eyes, and their head becomes rounder.

Week 10 Ultrasound: What It Looks Like

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Baby at 11 Weeks

Your Baby is the Size of a Ping Pong Ball

Gone are those late 3 a.m. nights at your local watering hole, playing beer pong until it was time for last call. (These days you're lucky to make it through an episode of your favorite show on Netflix before passing out.) Even if you're not getting boozy like you did in college, you might be experiencing more gas and feeling the bloat, just without the brewskies. But all those bodily changes are for good reason: baby is growing fast! At 1.61 inches and 0.25 ounces, they're about the size of a ping-pong ball and can make facial expressions and smile. They're starting to kick but you won't feel it yet, and while sexual organs are forming, they won't yet be distinguishable by ultrasound.

Week 11 Ultrasound: What It Looks Like

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Baby at 12 Weeks

Your Baby is the Size of a Jelly Donut Hole

You're getting really close to the end of your first trimester (cue the praise hands emoji!), and that means your bod is making moves, with your uterus moving up and out of the pelvis, settling in just above the pubic bone. From here the uterus will continue to expand into the abdomen. While this helps with those frequent bathroom trips in the middle of meetings during the day, it also may make you feel a little dizzy. And though it technically won't cure it, we suggest eating something sweet to up your blood sugar…like a donut. Or more specifically: a jelly donut hole. Why? Because at 12 weeks, that's the size of your little baby baking at 2.13 inches and 0.49 ounces. They may want one of those treats, too, since now their digestive system is starting to develop.

Week 12 Ultrasound: What It Looks Like

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Baby at 13 Weeks

Your Baby is the Size of a Mini Cactus

Congrats, it's the last week of your first trimester! To celebrate, give that parenting gene some practice by picking up another plant for your desk (or windowsill at home). Plants have been known to brighten your mood and produce more oxygen, both things you can always use more of. Make sure to grab a mini cactus as a tribute to baby's size, which is now around 2.91 inches and 0.81 ounces. Ask your baby what you should call your new plant friend, since this week, their vocal chords are developing.

Week 13 Ultrasound: What It Looks Like

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Baby at 14 Weeks

Your Baby is the Size of Bicycle Bell

You're in your second trimester now and that means your babe is about to take off on a growth spurt and you're about to feel a lot better than you did in the beginning of your pregnancy. You might even feel up to taking some bicycle laps around your local park or neighborhood with your partner or bestie—and we totally approve of a 'Baby On Board' sign for the front of your basket. You might not need a bell, depending on where you live, but if you have one, admire it—that's the size of your little one this week. At 3.42 inches and 1.52 ounces, your baby can stand upright and is starting to sprout hair.

Week 14 Ultrasound: What It Looks Like

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Baby at 15 Weeks

Your Baby is the Size of a Mixed Tape

When you told your mom you were expecting, she may have offered you one of her old cassette tapes that she listened to when she was expecting you. Blame your pregnancy hormones (or how your love for your mom grows when you figure out you're going to become a parent, too)—but you smiled and took it. While you likely need to go to your local vintage or thrift store to find a cassette player, think about your prized Backstreet Boys tape back in the day because that's the size of your baby right now! They're about 3.98 inches and 2.47 ounces, and growing more each day.

Week 15 Ultrasound: What It Looks Like

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Baby at 16 Weeks

Your Baby is the Size of an Éclair

First it was cupcakes, then specialty donuts and then sundaes so massive you didn't know how you'd make it through scoop one. Decadent food trends will always evolve (can you even imagine what your baby will Instagram one day?), fulfill your craving for something super-sweet as a tribute to his size: an éclair. No prob if you can't finish it, but while your eyes may be bigger than your stomach sometimes, your baby's 4.57 inches and 3.53 ounces this week have helped them gain use of their eyes. Don't forget to tell them all about your trip to the bakery (and how many likes you got from posting it on Instagram), because they can also hear you now—and make sucking motions with their mouth.

Week 16 Ultrasound: What It Looks Like

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Baby at 17 Weeks

Your Baby is the Size of a Cute Vintage Wallet

You're inching closer to that halfway pregnancy mark and your oh-my-god-how-are-we-going-to-afford-this freak-outs might have begun. As you start to plan your budget with baby in mind, consider your prized vintage wallet you bought while backpacking in Europe. That's about how big baby is right now, at 5.12 inches and 4.94 ounces. Go ahead and daydream about showing them the world, especially since those fingerprints are forming, meaning they can get a passport as soon as they're born!

Week 17 Ultrasound: What It Looks Like

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Baby at 18 Weeks

Your Baby is the Size of a Side of Guac

Let's get one thing clear: while you're not technically "eating for two" as the old adage says, we are firm believers in giving your body (and your baby!) what it wants. Mexican for dinner again? Go for ahead, and don't forget about the side of guac. Baby's about the size of your fave side dish, at 5.59 inches and 6.70 ounces. Just don't stay out too late, since baby is learning to yawn now—it's tiring work developing their senses.

Week 18 Ultrasound: What It Looks Like

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Baby at 19 Weeks

Your Baby is the Size of a Pint of Ice Cream

While every parent-in-the-making is different, you might start to feel baby's first kicks (that frankly, might feel a lot like gas and a little like butterflies) in the coming weeks. Why? Your baby is starting to get a little more coordinated as they grow inside of you, and these days, they're around 6.02 inches and 8.47 ounces. That's about the size of that pint of Ben & Jerry's that you down every other night because, #YOLO.

Week 19 Ultrasound: What It Looks Like

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Baby at 20 Weeks

Your Baby is the Size Of a Top Knot

You're already halfway through your pregnancy, and thankfully, you probably actually feel preggers now (and not just, um, bloated from eating one too many burritos). Your belly has likely popped a bit, you're showing, and you might be reaping the benefits of some shinier, faster-growing nails and hair. But if those silky locks are growing too quickly for you to keep up with styling, throw it up in a top bun, that's (surprise!) the size of your baby this week! That's right, at 6.46 inches and 10.58 ounces, baby could fit on the top of your head.

Week 20 Ultrasound: What It Looks Like

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Baby at 21 Weeks

Your Baby is the Size Of a Bottle of Sriracha

Craving noodles tonight? Or maybe something savory and sweet that definitely doesn't go together, but your 10.51 inch and 12.70 ounces mini-me says it does? You might be craving random foods like crazy and you may even have a hankering for something spicy. Pick up a bottle of the cult favorite—Sriracha—to fulfill those Netflix binge munchies. Hold it close, since that's baby's size right now. Just hope your babe loves spice as much as you do, since this week, their developing taste buds may allow them to taste the heat, too.

Week 21 Ultrasound: What It Looks Like

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Baby at 22 Weeks

Your Baby is the Size of a Kale Smoothie

If your daily morning walk or workout during pregnancy has gotten a little more difficult lately, take a peek down at those feet of yours. Well, at least while you can, that is—you're about to hit the time when those Nike kicks won't be visible past your belly anymore. Your feet might also be swelling as you pick your post-workout kale smoothie. But the good news about your health obsession? That smoothie can give you a glimpse into baby's size right now: 10.94 inches and 15.17 ounces. When you think you can't take another step, daydream about baby's gorgeous face, which now has eyelashes and eyebrows.

Week 22 Ultrasound: What It Looks Like

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Baby at 23 Weeks

Your Baby is the Size of a Burrito With the Works

As #awesome and #lifechanging as growing a tiny human is, these days, between swelling, fatigue, forgetfulness (that Google Calendar doesn't always keep up its side of the bargain, eh?) and possible skin discoloration, you might miss your pre-pregnancy days a bit. To make yourself feel better, devour a burrito with all of the works (that your heartburn can handle) in honor of baby's big milestone: they weigh more than a pound at 11.38 inches and 1.10 pounds!

Week 23 Ultrasound: What It Looks Like

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Baby at 24 Weeks

Your Baby is the Size of a French Press

Of all the things you have to give up when you're pregnant (like white wine. Or red wine. Or any wine. Did we mention wine?!), one thing that luckily isn't a no-no is coffee—in moderation. And with those sometimes-restless nights where no position feels like the right one, you're thankful for that morning brew. Give that java an upgrade with a French press this week since that's what size your baby is right now: 11.81 inches and 1.32 pounds. Another cool feature you can talk about over breakfast? Imagining what their sweet face looks like, since now, it's fully formed.

Week 24 Ultrasound: What It Looks Like

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Baby at 25 Weeks

Your Baby is the Size of Wide-Brimmed Fedora

As cute as your belly is (especially in those blue jean overalls that are making a comeback), it doesn't always make up for how sore your back is from carrying that extra weight. Take a load off and head to a brunch with your crew. To pair with your trendy outfit, grab a wide-brimmed Fedora hat, which is about how big your babe is right now. At 12.50 inches and 1.46 pounds, their nostrils are now open.

Week 25 Ultrasound: What It Looks Like

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Baby at 26 Weeks

Your Baby is the Size of a Bottle of Fancy French Soda

Oui, oui! Is that an outie belly button you see?! You're about two thirds of the way through your pregnancy (whoa!), and you might start noticing more stretch marks and more movement from babe. Though it's not OK to have a glass of vino, you can toast to getting through a large part of your pregnancy with a bottle of some sparkling water or fancy French soda. As you cheers with your friends or partner, pay special attention to that bottle, since your baby is about that size right now: 14.02 inches and 1.68 pounds. Even cooler than that ice cold glass? Your baby's eyes are starting to open now and the brain waves are starting to roll.

Week 26 Ultrasound: What It Looks Like

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Baby at 27 Weeks

Your Baby is the Size of a Terrarium

As you inch closer to that third trimester, you might feel that nesting mode coming in full force. Since your baby shower is probably happening soon and you've picked out swatches for the nursery, you might want to consider adding even more life to the room for the new life you're bringing into the world. Baby is about the size of a terrarium, at 14.41 inches and 1.93 pounds, and we bet they'd like the greenery in their first-ever room. You could ask them if you want, since your baby can probably recognize your voice by now, too! Just don't be disappointed if they respond with a hiccup.

Week 27 Ultrasound: What It Looks Like

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Baby at 28 Weeks

Your Baby is the Size of a Tagine

Time to post that #HomeStretch photo—you're in the third trimester now. While it might feel like your belly grows faster than ever in the coming weeks, take a night out to celebrate how far you've come with some Moroccan food. Just don't forget to tell everyone that baby is about the size of that tagine on the table, at 14.80 inches and 2.22 pounds. We wouldn't be surprised if baby starts thinking about their own first trip to North Africa now.

Week 28 Ultrasound: What It Looks Like

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Baby at 29 Weeks

Your Baby is the Size of a Giant Banana Split

You've long forgotten what your feet look like, but hey, that diner down the road knows you by name and there's always a seat for you when you have an intense craving that just has to be filled right now. This week, opt for a giant banana split with all the fixings, which depending on the size of that potassium all-star, is the same size of your baby right now. At 15.2 inches and 2.54 pounds, it'll be a baby-screams, you-screams for ice cream kind of time. With a few extra kicks, since now, baby might be jamming your insides with their elbows and knees (and you'll feel them, since your baby's bones are fully developed, though still soft and pliable). And so it begins…

Week 29 Ultrasound: What It Looks Like

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Baby at 30 Weeks

Your Baby is the Size of a Garden Gnome

If you decided to have your shower at your place, you might have asked your partner to update the landscaping before guests come. While they're pulling on the yard work gear and heading to the backyard, suggest they pick up a garden gnome for baby, since that's about how big they are these days. At 15.71 inches and 2.91 pounds, your baby's continuing to grow, gain weight, develop blood cells and, coolest of all, their brain is developing rapidly.

Week 30 Ultrasound: What It Looks Like

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Baby at 31 Weeks

Your Baby is the Size of a Large Movie Popcorn

Remember those insane videos about birth you had to watch in sex ed in high school? Or in college anatomy? We hate to break it to you, but they're even scarier when they're about to become your life. But when you watch them, you might as well have reinforcements, such as a large movie popcorn that's about the size of your own little villain this week. At 16.18 inches and 3.31 pounds, your baby may take a snooze and suck their thumb while you tune into what's happening in a few weeks.

Week 31 Ultrasound: What It Looks Like

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Baby at 32 Weeks

Your Baby is the Size of a Bento Box

Meal prepping when you're 32-weeks pregnant is about as laughable as those skinny jeans you wore pre-pregnancy. That's why the invention of the bento box for lunch is not only a financial bargain but a top-pick for preggos. When you nosh on your third quirky lunch box this week, consider the size of it. Baby is about that big right now, at 16.69 inches and 3.75 pounds. They're also practicing their sleep cycles, and your doctor may want to check which direction their head is pointed to prep for birth.

Week 32 Ultrasound: What It Looks Like

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Baby at 33 Weeks

Your Baby is the Size of a Small Chihuahua

Your fur-baby will always be your first baby, and while you might spend more time cuddling now than ever before, once your human arrives, your furry friend might not get as much attention. They'll forgive you for it (probably) but just make sure to think about how big your pet is in comparison to how small baby is. Unless you have a small chihuahua, your cat or dog is probably bigger. This week, your baby is about 17.20 inches and 4.23 pounds, and their immune system is beginning to develop.

Week 33 Ultrasound: What It Looks Like

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Baby at 34 Weeks

Your Baby is the Size Of Mid-Century Modern Hanging Lamp

Having a hard time coming by some shut-eye? With a heavy belly, tired back, and a body pillow that only helps you fall asleep a smidge of the time, you might be watching Netflix re-runs more often than you'd care to admit to your co-workers. If your few dreams are of mid-century modern homes worthy of Mad Men, think about the lamps you see hanging there. That's about how big baby is this week at 17.72 inches and 4.73 pounds. And cool fact? Your baby is now growing some fingernails!

Week 34 Ultrasound: What It Looks Like

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Baby at 35 Weeks

Your Baby is the Size of a Picnic Basket

It's no picnic being pregnant at 35 weeks: you might be running to the bathroom every chance you get and sleep might be something of the past. But the good news? Your baby is gaining weight fast and frequently, as they prepare for their grand entrance. While you clear through everything you own in total nesting mode (don't forget to share that nursery on Instagram!), take a look at the picnic basket in the back of your closet, since that's how big your babe is this week, at 18.19 inches and 5.25 pounds.

Week 35 Ultrasound: What It Looks Like

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Baby at 36 Weeks

Your Baby is the Size Of a Throw Pillow

If your partner thought throw pillows for you king-sized bed were unnecessary when you moved in together, chances are, they'll also think they're kind of silly for the rocker in your nursery. But hey, those Etsy finds were totally worth the two hour search when you couldn't sleep at 3 a.m., thanks to your kicking baby, right? Throw the pillow their way as you tell them that's the size of your babe this week at 18.66 inches and 5.78 pounds. Your baby's bones are continuing to strengthen now (and will get stronger during the first years of life), and they're getting more ready for their trip down the canal. Don't be alarmed by those increasing Braxton Hicks contractions, which you may be experiencing from now until it's time for the real deal.

Week 36 Ultrasound: What It Looks Like

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Baby at 37 Weeks

Baby is the Size of a Lightweight Kettlebell

You can remember it, right? Those Sundays when you'd wake up late, head to the gym for some cardio and weight training, then grab a boozy brunch before settling into bed, relaxing until you had to survive another case of the Mondays? Your life is getting ready to change (in an awesome way, we promise!), but you might feel like that baby growing inside of you is getting heavier—say, like a kettlebell?—by the day. You're right, your baby's about 19.13 inches and 6.30 pounds now, just like that kettlebell you used for arm reps pre-pregnancy. They might be working on their own exercise routine, with more kicks and movement as they prep for birth. Consider it the warm up.

Week 37 Ultrasound: What It Looks Like

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Baby at 38 Weeks

Your Baby is the Size of a Toolbox

You've always been independent and perhaps a little handy, stubbornly fixing everything in your apartment that you could before asking for help. These days though, it may pain you to ask for assistance for the littlest of things (like um, getting out of bed) from your partner. Just don't forget that your body is prepping for the tools it needs for birth coming up soon, which is why it makes sense that your baby is about the size of a toolbox this week, at 19.61 inches and 6.80 pounds.

Week 38 Ultrasound: What Looks Like

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Baby at 39 Weeks

Your Baby is the Size of a Beach Ball

We know, we know, you're ready to get this baby out of you… like now. You're uncomfortable, you're hormonal, and the very thought of another week may make you want to go to bed, stat. Dream of a nice day on the beach (with a margarita or two in your hands) to get through these last two weeks. Especially since you feel like you have a beach ball in your belly, and you do, since that's the size of your babe this week at 19.96 inches and 7.25 pounds.

Week 39 Ultrasound: What Looks Like

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Baby at 40 Weeks

Your Baby is the Size of a Gallon of Almond Milk

You made it! You grew a baby! Can you believe it? We know you can, since you're feeling it and you're more than ready for that babe to get out of your body already, please-and-thank-you. Enjoy some coffee (though still only a 12-ounce cup or less) before you might have to stop drinking or eating anything when you go into labor (depending on hospital policy), but don't forget the almond milk. It's a nice dairy-free alternative if regular milk gives you stomach issues, and a gallon of this healthy supplement is the size of your fully-grown newborn, at 20.16 to 21 inches and 7.63 to 9 pounds. You're a rock star!