Men should get equal rights when they take on equal liability and equal responsibility and shoulder some of the health risks via monetary compensation (the only possible way).
But, I do not believe that men would step up to the plate.
Once they have to "feel the pain" just as women do, they would sing an entirely different tune.
Just for endangering a woman at all, they should be held responsible. Nobody every looks at the fact that the man plays the most active role in conception. He's the more aggressive usually, he's the more irresponsible usually. Why? Because he can, and there's really few to any consequences for him if he chooses to evade them.
If the law states that a woman cannot evade her consequences, then in the most extreme iron-fisted manner, neither should a man be able to escape. Only when the results of conception are on equal footing for the man and the woman, can one possible discern just how "moral" a man will be over the concept of abortion.
The liability must be equalized first, then the discussion is reasonable. Once that happens, I think a man does have a say in the decision.