It can be. Your body is adjusting and making changes to prepare for a growing uterus! Rest and if it gets worse or you do see any bleeding call your doctor asap. For right now though, just relax, you will notice a lot of little aches and pains in the coming months that you have never had before! Pinches, pressure, soreness and eventually 'practice contractions'.
at 11:14 AM on Apr. 4, 2011