I am having terrible cramping and back pain. it almost feels like period cramps. It got to the point where it was waking me up in the middle of the night it hurt so bad. I also have lower back pain with it. I am 18 weeks 4 days and the baby is active, not as much as usual but i could be worrying myself too much. I called my ob and she said it's normal growing pains and to not worry unless I start bleeding. I don't remember my first pregnancy being this miserable and in constant pain, which makes me worry. I don't know what to do. Could it also be from constipation? I just want this to stop. I have drank cold water, laid on my left side with my arm up and it hasn't eased. If anyone has any advice that would be wonderful because I am freaking myself out a bit.