Can I Conceive?

I am 25 and have a 3 and 5 year old. About two years ago I had a miscarriage at 11 weeks and the doctors didnt do a DNC until 4 months later because they thought i would p everything on my own. When they finally did the Dnc they said everything was still inside me. I am afraid this may have caused problems with me conceiving now and i have been trying for a few months. Could this be a problem?