As the baby gets bigger and fills up all the space in your abdomen, your rib cage may become sore. It is not unusual to have to get up at night and walk around for a few minutes to settle the baby back down into your lower abdomen again and out of your ribs. Some women will have more heartburn as the uterus displaces the internal organs, leaving less room for her stomach and its contents. This can be relieved by remaining upright after a meal.
Some women say that eating smaller, more frequent meals helps their heartburn.
One of the most frequent complaints in pregnancy is back pain. This can start at almost any point of pregnancy and can continue well into the first postpartum year. Some back pain can be relieved by maintaining good posture, exercise and stretching. And you can always ask a friend to give you a back rub. The pregnant body produces a hormone called relaxin.