Currently, I do think it's fair. Until there is some way of making it fair to both people, the man should not get a say in whether or not a woman has an abortion. It is only fair if the man provides absolutely everything the woman needs as a result of the pregnancy, that the woman have absolutely no legal obligation to the child, and that she be given compensation for carrying the child. If the man is not willing to provide that, then he has no right to decide whether or not she keeps it.
For example, as a result of the pregnancy, the woman would need extra food, pregnancy clothing, vitamin supplements, doctor appointments, prescriptions, hospital bills, etc. Then she has to deal with weight gain, hormonal changes, mood swings, sore body parts (such as back, knees, etc). Then there's the actual act of giving birth, which is both painful, and will permanently alter her body. Either she gets a stretched out vagina, or a scar down her belly. I've also heard of breasts sagging after pregnancy. She must then deal with the weight gain from the pregnancy, which can be hard to lose.
All of those, and more, must be addressed.