2nd TrimesterMonth 4Week 16 of 40
16 Weeks Pregnant
— How Many Months Is It?
16w
Equivalent to
Month 4
2nd Trimester
🥑
Baby is the size of a
Avocado
11.6 cm (~4.6 in) · 100g
🌱Fetal Development Milestones — Week 16
Eyes make small tracking movements and moms may start sensing faint flutters (quickening).
Pregnancy timeline progress40%
Week 1Week 16Week 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.
Frequently Asked Questions — Week 16
16 weeks pregnant equals Month 4 of gestation in the 2nd 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.
Eyes make small tracking movements and moms may start sensing faint flutters (quickening).
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).