Pain after TMI

For a couple days now my gut system has been playing up, when I need to go it takes me awhile or sometimes I’ll have push really hard and this causing some pain down there which I am used to because I have IBS (irritable bowel system). But last night when I was having sex with my partner it started to hurt but this time closer to my uterus or my uterus. It felt like I had done heaps of push ups that my core muscle was sooo sore, so was my gut and down there. I thought I would leave and see if the pain would go in the morning but it hasn’t, it feels really tender and sore to move a lot and it kinda feels similar to when your on your period with cramps but there not cramps, it just feels bruised and sore down there and I don’t know why? I thought I would to see if anyone had experienced something similar and what they done to help or fix the problem.