Ok so Im having this pain in the back and in the front as well,is weird,everytime I lay down it hurts a lot and if I sit it hurts in the front and in the back,theres not such a position that I feel no pain,and I cant be standing up for long period of times because my doctors told me not to cause my cervix is a little open and Im 29 weeks,this has been the worse back pain I have gotten through this entire pregnancy,should I go to the ER,or call a nurse line?or is this normal?