Yes, quite a bit, but it's complicated and ties into a lot of other ideas.
What do you want me to expand upon?
I'll try though.
Legally, I think the basis for the idea that someones body is their property would be the Fifth Amendment (rather than the ninth like the Supreme Court says). The government is only allowed to take your property with just compensation. I simply don't believe you can be compensated for the loss of your body, or the loss of free use of it.
The exceptions of this would be if you committed some sort of crime, or if you were drafted for the national defense. I hardly think these situations are comparable.
In legal traditions you simply are never compelled to offer up a part of the whole of your body. I am not forced to donate blood even if I have a rare blood type. I am not forced to donate kidneys, even though I have one more than I need. I am not forced to donate organs, my hair, teeth, skin, bone marrow, or any other things that might be useful to others.
The mother has a right to control what goes on in her body. The child has no natural right to exist within it simply because it existsany more than I would have the right to exist if I needed constant direct life support from another human beings organ. The use of government force to make her bring her child to term would basically be taking away her most precious property and yielding absolutely no compensation.
Once the Child is no longer dependant on the mother for sheer survival, the Government can intervene to take care of the child in the best interest of society without requisitioning a piece of someones body.
The child is always a human and always a baby no matter what you call it. When someone kills a pregnant woman they kill two human beings. When you have competing claims between the rights of the mother to control their body and the right of the baby to survive inside of her, the real problem is that the baby can not exist independent of the mother, and that it depends almost entirely on her bodies active support.
If you want to mandate the mothers choice in this matter you must take control of her body.