something off? or is it normal

Hi guys! So basically, my app shows that i am 2 days away from my period. Anyways, I had sex with my boyfriend and after there was blood on the condom and i started gushing a little blood and I didn’t really think too much of it, just thought I was getting my period. But then it just stopped, there’s been so blood since which is not normal for my period. Is it just my period? Or is something else goin on? Thanks!