D&C and miscarry at 10 weeks

I haven't gotten pregnant since I had a miscarriage about 12 years ago when I was 16.. I had a sonogram done and turns out they couldn't hear a heart beat, I then had to get a D&C done . eve since then I have not Been able to get pregnant ever since I am now 29 years old and been TTC for 5 years now . Has anyone had bad experiences w a d&c ? Any effect? Can something be wrong w me ?