Could i be pregnant?

okay so i stared birth control around a month ago but i’ve slipped up on my pills a few times. like i wouldn’t take my pill so i would take 2 the next day. But i was on my period and my cycle was supposed to be over and it mostly was i wasn’t really bleeding anymore so me and my boyfriend had sex and i was bleeding afterward (not bc of my cherry or anything i think i was just still sort of on my period). then the day after we had sex again and he finished in me and that day i forgot to take my pill so i took two the next day but my discharge is a brown-ish color so i don’t know if that’s normal or if i’m pregnant or if my vagina is still cleaning itself out from my period. can anyone give some advice or info?

(my period started the 18th of this month and mostly ended the 23rd but my discharge is still off-colored)