Have you spoken with your Dr about it ? What does he/she say ? Being on birth control for a long time can affect you.. How long has it been since you've gone off of it ? Sometimes it does take awhile for your hormones to level out again.
Maybe bc o the abortion. I think that's what it is. Ive read and personally know that many times after aborting women have problems trying to get prego.
I don't think its because of the abortion....My sisters both had abortions and conceive beautifully... being on birth control can mess up your hormones....don't worry just yet.. How long have you been trying???