Adoption is not an alternative to pregnancy, it's an alternative to parenthood. Our orphanages are already full of unwanted and orphaned children. Like hundreds of millions of children all over the world. Out of those, only hundreds of thousands get adopted annually. Essentially, out of every 1000 orphaned children, only 1 gets adopted. Adoption is only an alternative to parenthood and a faulty one at that.
As for whether my mom aborted me or not, if my mother didn't want me at that time, then it's her own choice what to do with her own body. My mother's course in life is hers to choose on her own, and if I wasn't a part of that plan, then so be it. I'd much rather my mother be happy in life than to force her to have me. It just so happened that my mother wanted me and that was her CHOICE. No being is ever entitled to have control over another person's body. I can't force my family or anyone else to donate organs to save my life. They can't do the same.
Well we wouldn't have problems with this issue if people were able to quell their lustful nature. It's easy to have fun with you're girlfriend/boyfriend without actually committing the act. My girlfriend and I don't want to risk getting her pregnant, but we can still make each other feel good. It's because of people who are ignorant and don't care about the downturn of society that we have problems with abortion and orphans. Also, I would like to follow your logic in your second point by saying that if someone killed you right now it would be justified because you shouldn't interfere with their choice to do so.
@Mr. X That last part about hanging up the organs made me chuckle haha