How Big Is Your Baby in First Trimester?

Baby's Length: <.25 in.

Baby's Weight: <.25 oz.

Baby's Size: Poppy seed

All length measurements in the first trimester are considered crown-to-rump (head-to-butt) because your baby's still too small to get an accurate head-to-toe assessment.

Baby's Length: <.25 in.

Baby's Weight: <.25 oz.

Baby's Size: Peppercorn

Baby's Length: <.25 in

Baby's Length: <.25 in

Baby's Size: Lentil

Baby's Length: <.25-.33 in.

Baby's Weight: <.25 oz.

Baby's Size: Coffee bean

Baby's Length: .50 - .75 in.

Baby's Weight: <.25 oz.

Baby's Size: Blueberry

Baby's Length: 1 - 1.25 in.

Baby's Weight: <.25 oz.

Baby's Size: Peppermint candy

Baby's Length: 1.25 - 1.75 in.

Baby's Weight: <.25 oz.

Baby's Size: Grape

Baby's Length: 1.5 - 2.5 in.

Baby's Weight: .25 oz.

Baby's Size: California Roll

Baby's Length: 2.5 - 3 in.

Baby's Weight: .50 oz.

Baby's Size: Pacifier

Baby's Length: 2.5 - 3 in.

Baby's Weight: .50 - 1 oz.

Baby's Size: Egg

For more comparisons, check out your baby's size in the second and third trimesters!