Thucy,
I support the legality of nearly all forms of birth control, and I agree that the young should understand the effects and consequences of sex and the existence of birth control. As for "pro-feminism," well, feminism is rather a large word, describing many different things. I support some, and oppose some, but that's a big conversation.
Notwithstanding all that, though, you're engaging in a flawed logic not too different from victim-blaming in other contexts. It is perfectly *consistent* to oppose the things you mention and yet oppose the availability of abortion as a means to handle the consequences of pregnancy (and yes, the abortion rate was much lower before legalization, as well as can be estimated). The argument is the same as those who argue that if we truly opposed rape, we would have to legalize prostitution (see e.g. http://www.washingtonpost.com/blogs/wonkblog/wp/2014/07/17/when-rhode-island-accidentally-legalized-prostitution-rape-and-stis-decreased-sharply/ and http://reason.com/blog/2014/07/15/fight-rape-with-legal-prostitution). In fact, that's not the case. One might have independent reasons for opposing the legalization of prostitution and thus oppose it even if one accepted the evidence that it might reduce rape (not that I'm saying it would). Ultimately, perpetrators of rape are responsible for their actions and have no excuse, including my disinclination to support legalized prostitution. Similarly, should a person oppose birth control for independent reasons, that does not somehow become an excuse on the part of somebody else to dismember babies, nor does it bespeak any inconsistency on the former's part.