pregnancy scared

about 2 weeks ago i had sex and he was doing it from the back, the condom came off but i don’t think he continued but the condom got stuck in me then i stood up and the condom was still inside ( didn’t know ) then i took it out, i was worried i didn’t get my period on time but then i got it on friday last week i don’t know if it was period blood it felt like it , it wasn’t like drops nor light pink blood but it ended yesterday (friday ) could i still be pregnant because of that? also idk if he cummed or not in the condom