DESPERATE FOR HELP!

So I unintentionally had unprotected sex last week and immediately after I asked him if he "ejaculated" in me, but of course he said no. I'm not on birth control pills but I do have some from from the last time I went to the doctor. When he left I took three and have been taking them daily since Wednesday. I'm freaking out bc the day we had sex was the day after my period had just ended. Can somebody please tell me what the chances of me getting pregnant are?