Pointing out that they could have made a worse decision constitutes a serious response.
I apologize - that was condescending in tone. Your response was the same type of flip response that I've heard before, and seems to me to be a lazy response, like we would come down on pregnancy altogether - if you get pregnant, kill the child - instead of coming down on pre-marital sex, shaming the parents, but not at all condoning abortion.
The mere fact of imposing shame should not automatically mean that abortion should be an option. It seems to me that the legalization of abortion was also the beginning of ending the stigma of out-of-wedlock births, ironically. It's all part of our culture. Societal pressure used to prevent a lot of pre-marital sex and, therefore, out-of-wedlock pregnancies. This same shame also prevented abortions, even when available.