Sex, blood and BFP.. HELP

Sa

My hearts in my throat, this morning I took a test @ 12DPO and I swear I saw a line.. all day I've been looking forward to buying a FRER tomorrow to confirm it.. tonight the BF & I had sex and after there was blood, sorry TMI.. but since it was mixed with his baby juice, it was really pink, like watered down blood, not red... any thoughts? I'm not bleeding anymore and it wasn't pouring out, but it was still there and I'm so disheartened now, I REALLY thought I was pregnant.. did anyone else have sex in early pregnancy and bleed? 😦😔