Im not sure if i could be pregnant..help?!?

if anyone could help me out ASAP it would be greatly apperciated!.. so my ex and i have been trying to conceive for the last 3 months... and nothing. the last time we had intercourse was on the 6th day of my period which was on the 18th of this month (june). my next period is due july 12th (although sometimes its a few days early and other times its a few days late) so with that said i am in a panic because my ex and i recently broke up.. so my question is how likely is it that i am pregnant having said we had unprotected sex on the 6th day of my menstrual of this month? ..info please? thanks!