3 Months Pregnant
A look at weeks 9 through 12
Month 3 (weeks 9–12) closes the first trimester. The fetus takes on a human shape and miscarriage risk drops sharply after week 12.
Key changes this month
- Weeks 9–10: fingers and toes separate; external genitalia begin to form.
- Morning sickness usually peaks and begins to subside.
- Nuchal translucency (NT) ultrasound at 11–13+6 weeks for chromosomal risk.
Weeks in this month
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Textbook averages. Individual variation is wide and this is not medical advice — confirm with your OB.