30 weeks & making love!

So I am 30 weeks and 3 days. Baby is (was) head down at 29 and 3. My husband and I are still having sex. Not everyday, but occasionally. It doesn’t hurt but sometimes it does feel uncomfortable like I am sloshing my little baby around. I just feel weird in my tummy area. Is it still okay for us to be doing this? If so, any suggestions on the best positions for us at this point?