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).