I think I've been having bh for a few weeks. My belly feels rock hard, not sure how long maybe 30 secs to a min then it goes away. The past couple of days they have been accompanied with a bit of lower abdo pain. On the right, sometimes on the left, sometimes sharp pain, sometimes more like a cramp like I get with diarrhea or period pain.
Is it normal to get pain with bh this early on (22 weeks) or should I be concerned?

Also how often is normal?

Today and yesterday they seem quite frequent. Every few hours, I dont think they're regular but I haven't really timed it. I did have one strong enough to wake me up at some horrible hour this morning which kinda freaked me out. lol.

It's probably nothing but I just wanted to check what you guys thought.