AF or cervix bleed?!

Hey ladies just a quick one....

AF was due Tuesday so now +4 days and tests are still negative so thought oh well must be on its way.

This morning however me and SO had sex and I bled slightly just like I did when we would have sex while I was pregnant. I’m probably reading too much into this and it’s probably just kick started it but I have no cramps nothing. It was just weird how light and pink it was and how little there was just reminded me of what used to happen.

Has this happened to anyone else and you’ve greeted AF later or been pregnant?