It very well could be. Like Tiggersmom says, it sounds like it might be the mucus plug. I lost mine about two days before I went into labor with my first. In my experience, contractions start in the back and wrap around to the front, like a tight band. If they're coming and going, I would start timing them. If it's continuous, then it probably means labor is coming soon. If the pain is too bad, then see your Dr. Good luck and I hope you meet your new baby very soon! :)
