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.
Pregnancy Tracker: Week 4
My Growing Belly: Month 1
Fetal Development: Month 1
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