This is a hot button issue on which some people are not completely rational. However, since someone has been brave enough to raise the issue, I'd like to say a few words on what I think.
Abortion rates are too high.
I think each abortion is a tragedy in one respect or another, but I wouldn't legislate against them. There are definitely circumstances where they can be justified, such on health grounds or in the case of rape, as Demetz has mentioned. There is another circumstance where I would look closely before making a judgement call, and that is with teenage pregnancies. This is a loophole in Dr. Mr. Snow Dog's commentary about it really being about contract law -- underage teenagers are not legally capable of entering into such a contract.
What tends to be neglected in the debate is other methods of handling unwanted pregnancies. The biggest and simplest method is better sex education. Prevention is better than an abortion. If people clearly understood the options available, the number of unwanted pregnancies should reduce. If people really want to reduce abortion rates, then they should be supporting better sex education.
As for the father having no say, I agree that the father should have some say. However, it can not equal to that of the mother, simply because the father does not have to bear the burden of carrying the baby for nine months. The two sides of the equation are not equal. How to balance the two is not something I believe I can solve. After all, if the father wants to keep the child and the mother doesn't, what is the compensation for the mother rearing the child for nine months before it is born?
On a side note, for those who publicly state that abortion is murder because a fetus is a human being from the time of conception, then this means that miscarriages should be recorded as deaths and treated accordingly legally and morally (including the "right" to a religious funeral, if that religion believes that the fetus is a human being). This doesn't seem to be the case. My own views as to when an unborn child is a "human being" is a private matter -- partially because they are not well defined.