I'm sorry but it is ABSOLUTELY your responsibility to make sure you don't get pregnant if you do not wish to become so! I am a woman, I am a human, I am responsible for my body, and no one else. I control what and WHOM goes into my body, and it's my job to keep MY body healthy and safe (not yours, not Speed's, not our swing partners).
It may be "unfair" that a man can ejaculate in a woman, impregnating her, then leave forever while she is "stuck" carrying and birthing the child, but you are aware of this fact of life. It is what it is. If we women don't want to be pregnant, it is our individual responsibility to make sure it doesn't happen. Yeah, it sucks, right along with PMS and periods and yearly exams, but there it is.
I can ask if a man has had a vasectomy (and trust his answer), I can demand he wear a condom, I can tell him not to cum in me, I can get on birth control myself, I can NOT have sex with him.... hell, at least I have options! (BTW some options are better than others, I know...)
I would never ask a man "what are you waiting for?" or ask a man to go have surgery because I don't want a child. By extension, if a man ever asks me "if you don't want kids why don't you just get fixed?" or "why are you on the pill?" I will respond by saying "because that's what's right for me and my body." Personally, for me, I feel like being on the pill and insisting on condoms is just fine. Is there still a 0.00001% chance I could get pregnant, YES. But I am very comfortable with that level of risk, for me.
No one wants to be told what to do (or not do), especially when it comes to our bodies!