Most doctors assure their pregnant patients that back pain is normal and to be expected. Half of all pregnant women have back pain some time during the pregnancy. It's a common reason why women miss days of work. The good news is that it will go away in nine months!
It's always a good idea to report any changes during pregnancy, including back pain, to the doctor, nurse, or midwife. Your physician will make sure there isn't something more serious going on.
Back pain can be managed with good posture and work habits. Sometimes a maternity support belt can help. There's no reason to suffer needlessly if a few simple steps can be taken to assure comfort and support.