Need all of your thoughts or any similar stories and your outcome

So my fiancé and I had sex while I was ovulating, the next day was my peak ovulation day. It was on the rough side but didn’t hurt. I had some spotting when I went to the bathroom after we were done but it kept increasing as each day went by. I wasn’t bleeding like I would if I were on my period, it was light and pretty much only seen blood after wiping myself. I did have mild cramping.

As it got closer to my period staring I had normal pms feelings. Cramping like my period was going to start. My period is 5 days late, I took a pregnancy test two days after my missed period but it was negative. My cervix is extremely low and I have a lot of CM that’s white and creamy.

This has never happened to me before, anyone have any advice or input? Thanks in advance! 🙂