pill and pregnant?

am i able to get pregnant on the pill? i’ve been taking it daily but i’ll be late a few days just by an hour or 2. i start today but i’m still waiting. i’ve been having mood swings for the past 2 days but today i haven’t and i feel calm just tired a bit which is normal before my period i’m just a bit worried. my boobs hurt 9 days ago but pms hurt which is normal for me. any opinions ?