I believe the 'Roe' decision was based on a woman's right to privacy of her own body. The ruling by SCOTUS basically declared a developing human being part of the woman's body therefore she could not be made to either give birth or abort. So....The other question is....When a woman lets a man into her body, does she give up her right to privacy if the result is a pregnancy? I don't know if that challenge has ever been brought up.
LOL
OK, I'll take a quick & crazy swing at this!
1) Is his dick still in her when conception occurs?
2) Does his dick go in all the way to her womb?
3) When you let a friend park in your driveway, does that mean he can steal a beer (egg) from your fridge?