I had an abortion in the very early 70s, because being pregnant out of marriage then was asking for trouble.
I now have 2 healthy, grown up sons and 2 healthy grandchildren. The man I married, to whom I am still married after 35 years, would not have taken me with an illegitimate child in tow - and perhaps a man who would, would not have been as good and kind as he is.
I would greatly have feared the knock on the door or the phone call when my child was 18 or 19, because I'm not sure how I would have felt or how he/she would have felt about me, so it would always have been a dark skeleton in the closet.
Frankly I applaud you for doing what you have done and hope, like me, that you will shed any fear and guilt as the years go by and accept without question that you did the right thing for you. Go forward and don't worry, the process of abortion nowadays is medically extremely sound and I see no reason at all why you shouldn't have the children you want, when it's the right time for you.