I'm pro-choice but I'm also not against limitations.
There are people who advocate for late-term and even after birth abortion which is, exceptionally disturbing. There are also those who, as someone else said, will use abortion as a "birth control" in of itself and almost revel in the power-trip they get off of exercising their inherit right to abort.
Granted I am sure the two groups are one-in-the-same mostly and represent a very obscure, twisted minority.
Personally, I've found the best birth control is just not having sex. It's overrated. I mean hell, everything leading up to the act of is often more stimulating and fun really.