OMG pelvic pain after sex?

OMG so last night when I was sleeping I had more pain then usual rolling over and getting up to use the bathroom. Which now seem like 3-4 times a night! When I got up for good in the morning I started noticing I had pain on my left groin area. I brushed it off thinking it just my round ligament maybe it just pissed off! My boyfriend asked me could it be from the sex we had last night and I was like no I don’t think so it just normal pregnancy pains. But now I think it was because of the sex it hurts to roll over, move do anything mostly on my left side. Has this happened to anyone else? I took some Tylenol to see if that would help with the pain but I’ve never had trouble with sex with pregnancy till now! I’m currently 32wks +3days