Light spotting after sex

Has anyone every experienced light spotting after sex? My fiance and I had sex this morning and I went to the bathroom just now and noticed pink when I wiped. Nothing on my underwear and no pain at all. We have been ttc for b like 8 months. I was pretty wet down there since yesterday so I figured I'd try today. This is the first time I have noticed any blood this week. Last week I think I had ovulation spotting and we DTD that day. Since then my cm has been creamy. So much yesterday that it was on my underwear. I just started checking my cm. Anyone else have similar symptoms?