ughhhh Someone please give me an answer freaking out!!!!!

Ok ladies so I had a d&c due to severe complications with my baby. That was march 3rd so tomorrow is exactly a month. I'm waiting for my period to start to get the depo provera shot but me and hubby got a little drunk Thursday night and completely forgot about protection and he ended up going inside of me like twice before we finally realized. I took an ovulation test today to see if I was still highly fertile and he picture is what I got within a minute or two. Flat out positive. My question is how long after did you get pregnant with or without trying??? Also how long are you fertile for after a miscarriage or d&c??? Thanks ladies! A little freaked out right now knowing I could possibly get pregnant again I feel like it's too soon...