I've been on birth control for awhile , probably , and the last time i used it was august , being on it for awhile is that why i can't get pregnant?

Probably not: If the birth control was the oral contraceptive pill, the hormone dosages are minimal to only suppress ovulation while it is being taken. In the "olden days", huge hormone dosages tended to suppress ovulation for longer periods of time after discontinuance of the pill. Moreover, patients put on the pill in those days often had ovulation problems BEFORE the pill was given & once stopped returned.

Not likely: If you have not taken birth control pills since August that is not reason for you not getting pregnant.

Normal: OCPs can slightly change your first few cycles after stopping the pills but not later. You are still in the normal and expected time to get pregnant: 20% in first month, 70% in 6 month and 85% in 1 year.