well my fience and i had sex about a month ago and it was unprotected and we later found out that it was only a few days before i was susposed to ovulate. i got my period or what i think is my period 2 days late. it only lasted 3 days and it was very light. could i be pregnant?

and

we also had sex the day my period finished and we didnt use protection what are the chances i could be pregnant?