I got my first depo shot last week Friday (November 6,2015).. I had unprotected sex on the Saturday. He did not cum in me but I just wanted to make sure nothing happened (like precum) so Sunday I went to the pharmacy and bought pregnon and took one same time and the other 12hrs after.. Now.. Today (November 14,2015) I had unprotected sex.. He did not come in me but I'm a bit worried like if he precum or whatever. Just want to know if I'm at the risk of getting pregnant?