Helpppp

I'm 21 and lost my baby at 13 weeks. I had a d&c a month ago, I've continued taking my prenatal vitamins as well. 
I had sex before my d&c, but I'm assuming that it probably got cleaned out during my d&c, and even if not I'm sure I didn't ovulate soon enough to fall pregnant again. 
Two weeks after the d&c we started having sex again, unprotected but he pulls out. I've read about being highly fertile after a d&c but I'm just not sure if I was one of the lucky ones to get pregnant before the first period after a d&c. 
So for anyone who has had a d&c, did you become pregnant shorty after?