In the spree to demonize things we do not like, words are changed or substituted in order to either put down an opponent, or make yourself feel better. Thus, dead cow flesh becomes "steak," and dead pig flesh "pork." Likewise, if you're against abortion you become "pro-life" and if you're for abortion in any fashion, you are "pro-choice." Of course, both of these are nonsense terms.
This is not trying to open any debate on abortion in any manner, just to show the nonsense of labels and point out more positives for our animal friends and more negatives for our human actions.
So, it seems to me that if you are calling yourself "pro-life" you would have to be a vegetarian. There is no way around it. If you eat meat, you are agreeing to the butchering of innocent creatures, and in no way could this practice be defined as "pro-life." However, i doubt many in the pro-life movement see it this way, so these ones are outright liars. (Somehow animals aren't really alive...well, you know, unless they live in our houses and do cute things).
This does not put the "pro-choice" crowd off the hook, however. (Well, I guess it does for eating meat, as I can't find a way to tie them together at the moment, but...) If you call yourself "pro-choice" and say things such as "it's a woman's choice to do with her body as she wants," then she should be able to legally choose to do drugs and put any substance she wants into her body. It's her choice.
Personally, I'm a big fan of choice and believe we should be able to do whatever we want as long as it does not interfere with the right of anyone else to do exactly the same thing. Thus, if you want to shoot heroin into your eyeballs, go for it. In a truly free society you should be able to do as you please as long as you do not physically hurt the person or property of another.
So, if you call yourself "pro-choice" but are for drug prohibition, you're a liar. Both sides lose with their inflammatory labels.