Questions about pregnancy are best answered by an obstetrician-gynecologist (OB/GYN). Abdominal pain
during pregnancy should always be evaluated by a physician because there can be both harmless and very dangerous causes of these kinds of symptoms.
First, abdominal pain can be caused by the pregnancy itself. An ectopic pregnancy--where the embryo implants outside of the uterus--or problems with the placenta can cause abdominal pain. Abdominal cramps with spotting can also be a sign of impending miscarriage.
Next, pregnancy itself can make women more susceptible to problems with the urinary tract. A bladder or kidney infection or even kidney stones
can occur during pregnancy and cause sharp abdominal pain. Just like any other person, pregnant women can also develop appendicitis
, a stomach virus, pancreatitis, or gallstones.
Finally, there are several non-worrisome things that can cause abdominal pain in a pregnant woman. These possibilities include gas, bloating, constipation, and round ligament pain. The round ligament is part of the intrabdominal support for the growing uterus. As it stretches, a woman may feel a dull ache on one or both sides of the lower abdomen or groin or sometimes even a sharp, stabbing pain that comes and goes. Round ligament pain usually starts in the second trimester and can be provoked with position changes or a lot of physical activity.
With any new symptoms or changes in one's health during pregnancy, it is always best to seek evaluation from a physician who can take a thorough history and perform a physical exam.