Pregnancy Week 13
You're entering your second trimester this week! Learn what is happening with your baby's development and how to read food labels to make smart nutritional choices.
How Big is Baby?
Your beautiful baby is the size of a Meyer lemon this week—and his vocal cords are beginning to develop.
Baby's Length: 2.91in.
Baby's Weight: 0.81oz.
Mom's Changing Body
From tripping to dropping dishes, you might be feeling clumsier these days. Relaxin, another hormone that messes with you during pregnancy, loosens up your ligaments and joints in preparation for birth. Even though you need the extra give only in your pelvis, the hormone works on your entire body, which means your hands and feet are affected, too.
Baby's Development
Your baby is constantly getting bigger and cuter, and his face is looking more human-like every day. His ears have moved up from his neck into place and his eyes—which are looking more and more like your baby blues (or browns, or greens)—have moved from the sides of the head to the front of the face. Up until now, his head has been outpacing his body, but now his body is growing faster. His legs still need to grow longer, but this week his arms will lengthen to be proportionate with his body, and he'll be able to stick his thumb in his mouth. Also by now, all of your baby's essential organs and systems have formed.
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Weekly Tip
Don't forget to keep up with your regular dental checkups. According to the Mayo Clinic, about 80 percent of expectant mamas suffer from gum softening or bleeding.
Week 13 Ultrasound
In this profile shot, notice that the baby-to-be is lying with her bottom on the left-hand side of the image and her head to the right. (Even though the fetus is referred to as "she" here, the sonographer may or may not be able to identify the baby's gender at this point.) Her legs are clearly visible raised up, knees bent. The line across the middle of the profile is the sonographer's measurement of baby's crown-rump length (CRL). With this measurement, the sonographer is able to determine your baby's age.
Credit:
American Institute of Ultrasound in Medicine - AIUM.org
What Week 13 of Your Pregnancy Is Really Like
Pregnancy Confidential Podcast
Who Says We Can't Eat for Two?
It's Week 13 and, for many of you, the fog of the first trimester is finally lifting: You're probably starting to feel like your old self again, minus the constant nausea and irksome food aversions. But out with the old and in with the new: With the start of the second trimester often comes extreme hunger. It sometimes feels like your body is making up for everything it missed out on in the last three months and wants to eat everything in its path (minus those food aversions—those tend to stick around). Good thing you're eating for two... But are you? It seems science always wants to burst your happy bubble.
This Week's To-Do List
This Week's FAQs
Must-Reads
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What to Expect in the Second Trimester
Everything you need to know to sail through most women's favorite time of pregnancy. -
Second Trimester Ultrasound Pictures
We've partnered with the American Institute of Ultrasound Medicine (AIUM), Johns Hopkins, and the March of Dimes to create this unique peak into Baby's development inside the womb. These images reveal all the intricate details of your baby's growth in the second trimester. -
Pregnancy Symptoms in Men Are Real—and They Have a Name
Couvade syndrome, also thought of as "sympathy pain" in men during pregnancy, has a wide range of possible symptoms, some of which—like mine—can be severe. -
Loss of Balance and Pregnancy: What to Expect Every Trimester
Feeling a little off-kilter and worried about falling while pregnant? See how pregnancy affects your balance and find out how to stay steady throughout each trimester. -
Find the Most Popular Gender-Neutral Baby Name in Your State
Unisex baby names have become all the rage on the playground. But depending on where your playground is located, you're probably going to hear a lot more of one name in particular. Can you guess which it is?
