well when I said worry, I meant you. Don't know what I make of her not being worried at all. Maybe she knows something we don't (she knows she wouldn't keep it? Maybe she's already had like 3 abortions, dude)
I find it concerning anytime someone discusses a sexual partner not being worried about not using protection in casual scenarios.
I agree that beyond seeing to your own part of controlling birth, asking her beyond what method she uses and how well that works for her, is likely low yield.
I can see why you would hold off on more questions, but this does get into the space that if you are at this sort of a juncture... maybe sex is something to hold off on in the future, or the discussion moved up? Trust? I dunno.
I'm just at a place in my life where nobody got time for that, and I tend to just cover "so here's what I'm doing with my uterus" over drinks before we play in the playground next door. (ETA: by that I mean metaphorically)
I've told guys first date first time nude, "Yes, to my knowledge I am capable of getting pregnant if we don't use safe sex right now, and if I do, I'm keeping it. Your call." Not that it's on offer but it is funny to see a guy react to that after he asks not to use any.
Digression. I see what you're saying about awkwardness, but I'm challenging it. It's worth not taking at face value as you move forward in your life, it might even keep you from being "that guy."