I'm 28 weeks pregnant and decided I could lift a 50-60lb box of books today. I know, I know. My husband already lectured me about it. I just haven't really gotten very big and have been able to do my normal things for almost all of this pregnancy so far, and I didn't think much of it. I know I hurt my shoulder doing it and my neck and back are really stiff, now. What's worrying me, however, is this really sharp pain I'm getting across the top of my stomach and below it... like right under my pelvic bone. It feels a lot like Braxton Hicks only sharper. I had always been told it's a myth you can hurt the baby lifting and it CANNOT send you into labor. Is that true? I left a message with my OB but haven't heard back, yet. I'm worrying a little.