HI ,

I have been trying from last 6 months for a baby,I had an abortion on 3rd month lyk feb'10 is there any thing linked with it that why m not able to concive
Please suggest I'm afraid to visit a doctor

You had no "fear" of a doctor to get an abortion, why fear of a doctor to help you conceive?

Yes if there is scarring or other problems it can be a issue and needs to be examined.
Also how are you trying? Are you properly tracking ovulation periods by medical testing, a ovulation kit, or temp, ( not online guess calcuations)