Condom sex but he came inside me

Me and my boyfriend had condom sex on the last day of my period and the condom didn’t have any holes and it didn’t break. He even checked by pouring water inside the condom we used and he said no water came out and we took it off fine but he did ejaculate inside of me (with the condom on) I’ve been so worried and my period is supposed to come tomorrow but if it’s late it might be from me stressing about this. Can I please get some opinions on whether or not I could be pregnant? is it likely??