For the last 2 weeks I have been experiencing lower back pain on and off only on my right side. These last couple of days it has gotten a lot worse mainly at night, every night I've been waking up in a lot of pain because of it (no matter what side I sleep on) is this something I should be worried about and do I need to call my midwife? Or is it just growing pains from the baby? Another thing I need to add but not really the same is everytime I've had a scan I've come out with really bad lower back pain (on both sides) which normally goes away after a few hours.