Hello, i had missed miscarriage and did d&c on 7th may. my husband and i got carried away and had unprotected sex. i am yet to see my period and i am scared. i have been having lower back and stomach pains. what are my chances if i'm pregnant?

It is extremely rare or impossible to get pregnant normally just 2-3 weeks after a D&C. The earliest time is probably after three normal cycles. Unfortunately, urine pregnancy test is still positive at this time, 4 weeks after the termination, so the only option is blood HCG level for 2 consecutive weeks. Ectopic pregnancy is a thought but I doubt. Please see your doctor if symptoms get worse.