I have never had one. I hope I never will.
But if I assessed that all things considered, life for myself and the potential child would be significantly worse should he be born, I might get one.
Legally I am in favor of letting women make this choice with the support of qualified professionals.
This is not strictly about abortion but I'll bring it up because it's contingent to my opinion: I do not think that as long as the kid is in the womb, anything goes, and when he's outside it's evil, evil murder. I am favorable to late abortions being decided between the parents and the medical team (which is de facto what happens, late abortions for convenience purposes are pretty much a myth), in the same way pulling the plug on a non viable born baby is decided in a team (it's not or badly legislated, but it's done, and I wish it had a legal framework too.)