Although I support abortion, I agree with Locz, It - When considering its ultimate purpose, that is not wishing to have, care, or provide for a child, - really is sexist.
You have a male who doesn't want to care and provide (Or lacks the means to do so) for a child? He's a dead-beat *******.
You have a female who doesn't want to care and provide (Or lacks the means to do so) for a child? She's pro-choice.
While you can say that it's not the same as the woman sacrifices much to give birth to the child, so does the father. According to society, who is to care for the child? The mother. According to society, who is to provide for them both? The father. Having a child is a shared sacrifice - We shouldn't give one person a out, and ignore the other. Either neither should have a out, or both of them should.