i’m worried about my period

tonight i’ll be taking my 3rd placebo pill and typically after the first placebo pill i’ll get my period, but i still don’t have my period. there’s a little bit of blood but not a lot and i’m still having symptoms of my period starting. i had sex a couple days ago and we used a condom and it looked like it may have leaked but my boyfriend thoroughly checked and swears it didn’t. i’ve never had a pregnancy scare before and i’m worried.

edit: it’s the next day and there’s the littlest amount of blood coming out. only a little came out yesterday as well. i’m still feeling really concerned.