This is the story the pro abortion crowd doesn't want to get out, but I think there are women and young, possibly underage girls who were pressured or outright bullied into an abortion by their boyfriends or boyfriend's mother. Some 'choice'.
Sadly, I think that's true, and women who are pushed into it would be more likely to have conflicted feelings about it afterward, it seems.
Plenty are also pressured or bullied into NOT having an abortion, especially underage girls living with their parents. A few days ago, an FR poster told the story of his/her 15 year old sister who had been raped, gotten pregnant, and was forced by their parents to carry the baby to term (this was also pre-1973, so the parents didn't have any other legal option). It just destroyed her emotionally, and all she wanted was to get rid of the "thing" inside her, which is how she referred to it. The chance of a girl whose been through that ever being able to be normally happy about a future pregnancy is slim.