can some please help me idk whats going on Dx pics

M

I don't understand what is going on. I am on cycle day 16- throughout my fertile window we had sex and on CD 14 I think I got a positive OPK we had sex twice once with preseed.

that next morning I got VERY little blood in my CM...no spike in temp. and no today I take my BBT and even more blood runs down my finger :(

what is this and why?!?!? its not my period I NEVER spot before I get it and its NEVER 2 WEEKS EARLY!!