Breasts usually get bigger after pregnancy, but some women are less obvious. After pregnancy, due to the growth and development of the embryo, a large amount of human chorionic gonadotropin can be secreted. Moreover, the level of estrogen and progesterone secreted by the ovaries rises rapidly, which can stimulate the breast tissue and make the breasts bigger than before pregnancy. Therefore, pregnant women can show that their breasts become bigger, and may also be slightly swollen due to the occurrence of pain, these are normal conditions, do not need special treatment. However, in the early stages of pregnancy, before the hormones rise significantly, the symptoms of breast enlargement may not be too obvious, so you can not judge whether or not you are pregnant based on whether or not your breasts have become larger. If you experience delayed menstruation, you need to go to the hospital in time to check if you are pregnant.