Bfp right after mc

I had a mc 06/06 and didnt wait untill Mey period to try again. I have been testing the Last couple of days but they were all negative.tonight I think I got a BFP. Now all of a sudden im so scared. Who else had a experience like this? Btw the line popped up almost right away so I dont think it can be a evap line.could it be?