I see your point, sunshine, but I think the difference is that vasectomies and viagra don't have any chance of harming an embryo, whereas the doctors in the article believe that certain forms of birth control do harm embryos.
This probably won't be a popular opinion, but society has stacked the deck against women once again. We are told that we can have sex with whoever we want, whenever we want, but ultimately, we are the ones that bear the brunt of the consequences if a child is conceived. The only surefire way to decide not to give birth is to not have sex. Regardless of what doctors and pharmacists do, they can't force us to get pregnant and give birth if we don't want to. We will always have that power, except in cases of rape.
I don't mean to advocate abstinence and sexual repression of women, but sexually active women know that the "risk" of conception is always there. Like it or not, biologically, the responsibility rests with us, not doctors, not pharmacists, not even the men we sleep with. It shouldn't be that way, but it is.
Sorry if this is confusing...I'm still sorting out my thoughts on this.