Personally, I'm libertarian, and I believe that the womb is part of a woman's body and that she should have ultimate say of what happens with her pregnancy. However, I also think society has the right to place restrictions and responsibilities upon women in the same way we do upon men. If society faces an external threat, we can require men to register and participate in the military. Our bodies become property of the government as long as the threat remains. The equivalent for women would not be to draft them into the military - since they would suck at that. No, the equivalent for women would be that in times where the fertility rate of the country drops below 2 births per woman, that society has the right to suspend abortions in all but extreme cases. During this time where society faces a different threat to its own existence, it would be a woman's responsibility to carry a pregnancy to term. If a woman does not want a child there are plenty of families willing to adopt.
Eee Gads! That ain't libertarian especially the part about people becoming property of the state in times of crisis and suspension of abortion for the good of society. None of that is libertarian. That actually sounds like neo or progressive liberal.
Libertarians would support a volunteer non-government militia which acts only in response to events. As for abortion a libertarian might call for abortion restrictions under the arguement that proportionality has been violated ie you don't get an unwanted kid to leave your home by cutting them up with a chainsaw and shove them out a window. But those restrictions would be under common law not under government law.
Nothing you described sounds libertarian to me.