What are the chances of getting pregnant after having unprotected sex?

I have not had my period in 6 almost 7 months and two nights ago me and my boyfriend had unprotected sex. I would like to know what the chances are that I got pregnant. Any info helps. Thnkx.What are the chances of getting pregnant after having unprotected sex?Chances are great any time you have unprotected sex. You should test in two weeks.What are the chances of getting pregnant after having unprotected sex?50/50 there is always a chance. if you are worried take a test in 2-3 weeks.