It is normal for the nipples to become larger after pregnancy. During pregnancy, due to the influence of increased estrogen and progesterone, the development of breast follicles and breast lobules proliferate, which will gradually make the breasts bigger, some pregnant women will feel breast swelling and even some pain, and when squeezed there will be sticky yellowish colostrum produced, as the breasts gradually expand and become very soft. You need to take good care of your breasts during pregnancy, wear a suitable bra, and pay attention to the cleanliness and hygiene of your breasts. If there is pain and discomfort, you can wipe with warm water, hot towels, and perform gentle breast massage, all of which can effectively relieve pain and also play a role in unblocking the mammary glands.