3rd TrimesterMonth 8Week 33 of 40
33 Weeks Pregnant
— How Many Months Is It?
33w
Equivalent to
Month 8
3rd Trimester
🍍
Baby is the size of a
Pineapple
43.7 cm (~17.2 in) · 1.9 kg
🌱Fetal Development Milestones — Week 33
The immune system receives antibodies from the mother. The skull bones remain pliable.
Pregnancy timeline progress83%
Week 1Week 33Week 40
Calculate Your Exact Due Date
Enter your last period date for an instant gestational calculation
212835
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 33
33 weeks pregnant equals Month 8 of gestation in the 3rd 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.
The immune system receives antibodies from the mother. The skull bones remain pliable.
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).