1st TrimesterMonth 3Week 10 of 40
10 Weeks Pregnant
— How Many Months Is It?
10w
Equivalent to
Month 3
1st Trimester
🍇
Baby is the size of a
Prune
3.1 cm (~1.2 in) · 4g
🌱Fetal Development Milestones — Week 10
Critical organogenesis is nearly complete. Tiny fingernails and toenails begin to grow.
Pregnancy timeline progress25%
Week 1Week 10Week 40
Calculate Your Exact Due Date
Enter your last period date for an instant gestational calculation
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Enter your date to calculate gestational age.
Based on ACOG guidelines and Naegele's Rule for informational purposes only. Consult your OB-GYN.
Adjacent Pregnancy Weeks
Frequently Asked Questions — Week 10
10 weeks pregnant equals Month 3 of gestation in the 1st Trimester. Because calendar months vary between 28 and 31 days while weeks are exactly 7 days, clinical tracking in weeks provides the most accurate timeline.
Critical organogenesis is nearly complete. Tiny fingernails and toenails begin to grow.
Use the calculator above: enter the first day of your last period (LMP) and the tool will calculate your exact estimated due date using Naegele\'s Rule (LMP + 280 days).