Wonder how big your baby is now? Here's an approximate look at size, weight and height in the first trimester.
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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.