How your baby's growing:Your baby doesn't have much room to maneuver now that he's over 18 inches long and tips the scales at 5 1/4 pounds (pick up a honeydew melon). Because it's so snug in your womb, he isn't likely to be doing somersaults anymore, but the number of times he kicks should remain about the same. His kidneys are fully developed now, and his liver can process some waste products. Most of his basic physical development is now complete — he'll spend the next few weeks putting on weight.
See what your baby looks like this week.
Note: Every baby develops a little differently — even in the womb. Our information is designed to give you a general idea of your baby's development.
How your life's changing:
From here on out, you'll start seeing your practitioner every week. Sometime between now and 37 weeks, she'll do a vaginal and rectal culture to check for bacteria called Group B streptococci (GBS). (Don't worry — the swab is the size of a regular cotton swab, and it won't hurt at all.) GBS is usually harmless in adults, but if you have it and pass it on to your baby during birth, it can cause serious complications, such as pneumonia, meningitis, or a blood infection. Because 10 to 30 percent of pregnant women have the bacteria and don't know it, it's vital to be screened. (The bacteria come and go on their own — that's why you weren't screened earlier in pregnancy.) If you're a GBS carrier, you'll get IV antibiotics during labor, which will greatly reduce your baby's risk of infection.