At 30 weeks pregnant you are in the third trimester, with about 10 weeks to go until a 40-week due date. Weeks are counted from the first day of your last period, so this is roughly month 7 of pregnancy.
How big is your baby at 30 weeks?
Around week 30, your baby is often compared to a cabbage. Fruit and vegetable comparisons are a friendly way to picture the size, not an exact measurement.
From the INTERGROWTH-21st international standard (University of Oxford), the median estimated fetal weight at 30 weeks is about 1.40 kg. Most healthy babies fall between roughly 1.09 kg and 1.81 kg (about the 2nd to 98th percentile). Scan estimates carry some margin of error, so a number on its own is rarely a reason to worry. Our guide on reading the weight on your scan report explains more, and the baby weight checker lets you enter your own report.
The third trimester runs from week 28 until birth. The baby gains most of its weight now, and your body prepares for labour.
Your body at 30 weeks
Swelling in feet and fingers is common. Sleep can be broken, and vivid dreams are normal.
What is going on
Fluid and blood volume are close to their highest, so swelling in the feet and fingers is common. Hormones and a heavier belly can make sleep difficult, and vivid dreams are normal.
What can help
Take your rings off if fingers swell and ask your doctor about any sudden swelling in your face or hands.
Other weeks
28 weeks pregnant · 29 weeks pregnant · 31 weeks pregnant · 32 weeks pregnant
See all weeks on the pregnancy week by week page, or try the interactive week-by-week guide.