I take birthcontrol three months straight i has sex last night an ended my period yesterday what are my chances of pregnancy ?

Very low: Your birth control should still be in effect and having your cycle seems unlikely that you are pregnant. Monitor your cycles and if you miss a month, check for pregnancy.

Less likely: Beng on birth control and finishing your period yesterday is a good sign of not being pregnant. Always use a condom if you and your partner don't want to have a baby. Please check a home pregnancy test if concerned.