I need some guidance...

So I am 27 weeks pregnant as of tomorrow. Recently I’ve notice that when my husband and I have sex or I am using my vibrator and I start to get close to climax my stomach hardens and it’s a little painful if I don’t adjust myself or pause. Has anyone else had this issue? Did it cause other issues? My husband has a really high sex drive and I like to keep him taken care of but I don’t want to put our baby at risk if this is a bad thing.

I plan to ask my OB on the 2nd when I go in but I just need some guidance temporarily to see if maybe we should slow down for a little bit or if I’ll be fine and it won’t put my pregnancy or our baby at risk.