Serious thoughts needed please! (tmi)

Sometimes duting sex I have pain in my left side.   Today after getting frisky this morning I fell asleep.  When I went to the bathroom I peed red.   Ive had a weird burning sensation above my belly button but its so faint its hard to tell if im imagining it or not. My oeriod has been regular a few months and then irregular a few. And it came earky with major habbing pain.  Someone told me bleeding after sex can be normal if oenetration was too deep.  Any other thoughts on what it could be? Anything youve heatd on the subject? Any insight please.   Feel free to ask more questions if it can help