Whats normal & whats not? My lower back has hurt since I woke up yesterday. It started on the right side and spread to both sides. I may or may not have mild period like cramps as well. I do have a bad back so occasional back pain is normal for me but back pain during pregnancy is a whole new ball game. I didn't feel any growth for almost two weeks & the babies were a week ahead at there U/S last week. So maybe I'm going through a massive growth spurt? I'm calling my OB this morning anyways for reassurance just wanted to hear what the Bees had to say.