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Your Changing Body Week-by-Week

From the time of conception until the time you give birth, your body is going to go through some major changes. Find out what to expect with our week-by-week look at your changing body.
woman holding breasts Week 29

During pregnancy you'll experience a lot of surprising symptoms, and one that can happen during the third trimester is leaky breasts. The yellowish, thin fluid is colostrum, which is the precursor to breast milk. Usually you'll notice only a drop or two, if any at all, but if the flow becomes greater, you can put nursing pads inside your bra to keep things under control. This fluid contains antibodies that help fight infection and build resistance to many common illnesses during your baby's first days on the outside. So even if you don't plan on breastfeeding for the long haul, you might want to consider nursing just for a couple of days so your baby can take advantage of this nutritional head start.