I have an abortion 5 months ago with no complication trying to get pregnant ever since but no results.. did i became infertile? what's wrong with me?

See a doctor: An abortion without complications should not cause infertility, but if you are concerned, please see your gynecologist or a reproductive endocrinologist (rei) for advice and possible evaluation and treatment. At less than 35 years of age it can be normal to take up to a year to conceive. So 5 months without conception is normal. Best of luck!