My back hurt through out pregnancy and still hurts up in to my neck. What is going on?

Common complaint. Back pain in pregnancy is a common problem. It is likely due to laxity of the joints due to the hormone relaxin and strain on the joints of the back from the pregnancy itself. Tylenol (acetaminophen) can be used along with stretching. If this does not relieve the pain, you can try physical therapy. Talk with your obstetrician for further evaluation.