Not sure what to think?

Hannah
Been TTC for 5 months now, been having lots of sex with the better half been really happy for a change since I got given a higher dose of happy pills (anti-depressants). Between them and I've been getting on so well with my partner that I literally have never been happier! But anyway my partner and I were having sex about half an hour ago, and he obviously cummed inside me and when he pulled out there was his cum mixed with brown-ish blood dripping on the towel it was also all over his penis, but as soon as I wiped down there after I went for a wee, it was gone there was no more?. Period was due Friday/Saturday. 
I never get spotting before a period either I just start. 
Any advice would be great, 
Thankyou girlys💖