Relax the muscles. Tighten and relax the muscles several times a day. The mammary glands cause the breasts to swell and become tender in preparation for breastfeeding. This is due to an increased amount of the hormones estrogen and progesterone. A supportive bra should be worn.
Veins become more prominent on the surface of the breast.
The uterus is growing and begins to press on the woman's bladder, causing the need for her to urinate more frequently. However, morning sickness does not necessarily occur just in the morning and rarely interferes with proper maternal and fetal nutrition. As the growing uterus presses on the rectum and intestines, constipation may occur. The muscular contractions in the intestines, which help to move food through the digestive tract, are slowed due to high levels of progesterone. This may, in turn, cause heartburn, indigestion, and gas.