Pressure in the lower abdomen in a common symptom during pregnancy, particularly if this is not your first pregnancy. The enlarging uterus continues to put pressure on the cervix and vagina, especially in the 3rd trimester (between 28 and 40 weeks). This pressure can be extremely uncomfortable. Although it is reassuring that you don't have any symptoms of bleeding or cramping, it is important to discuss pressure with your practitioner. On rare occasions, it can be associated with preterm labor, premature cervical dilation and bladder infections. In addition to making sure all is well, she can also give helpful advice on things you can do to help relieve some of this pressure, such as using a well-fitting maternity belt and resting more.