Am 7week pregnant got back pain is that normal?

Can Be. In early pregnancy, any new pain should be explored and an ultrasound performed to ensure an intra-uterine pregnancy. Although back pain is fairly common, it can occasionally be from referred pain from a bleeding ectopic, uterine cramping, or an ovarian process. Discuss your symptoms with your doc to see if an evaluation is appropriate. Good luck with your pregnancy.
Back pain common. Back pain during pregnancy is extremely common, and can be from many different causes including muscle/myofascial strain/tension, back joints(facets) causing pain, hormone-induced (relaxin) ligament stretching, sacroiliac joint pain(very common), or referred pain from expanding uterus. Although these are common causes, new pain during pregnancy should always be evaluated by your obstetrician!