Still confused

Brandy

Normally my flow is really heavy in the beginning Last month is was lighter then normal but this month I had barely any bleeding more like spotting not enough to fill a pant liner for not even 3 days I had a brownish discharge in my underwear like I would get from the end of my period I’m peeing more the. Normal doesn’t burn or anything I been feeling more nauseous was making burger and the smell was making me gag my fiancee and had sex it was around my ovulation time but pulled out and put back in I have 2 children already and my htc levels are weird I didn’t find out with both kids till around 3 months I just wanna know what’s going on