Its normal, I've had it too. its the bodies way of preparing for labor. You'll notice the difference when it's contractions because you will feel the tightness in your belly. The other sharp pains are just you're body stretching and prepping for what's to come!

My sharp pains feel like they are inside. Like he's stabbing my cervix with a knife. It's horrible. Walking, sitting, standing, laying down. Everything hurts lol