AITA for not having kids?

Okay for some context, I ftm 20 am disabled. Fairly severely in fact, a lot of genetic mutations and a laundry list of diseases syndromes and disorders. Mostly hereditary shit I was born with. Well I live with my mother f41 and my grandmother f70 and we were talking about my childhood, I had mentioned something about how I would like to be a parent but i couldn’t ever do it and my grandma responded with “oh you’ll change your mind if you ever end up pregnant” and well i replied flatly “No. if I get pregnant I’m going to terminate it” and of course because she’s a intense Christian woman she was offended and demanded an explanation. I will admit I got a little snappy because of her drastic reaction, but I went on to explain how being disabled in the ways I am is something i don’t want to pass on to someone who has no control over their own existence and it would be unfair of me to pass on my horrible genetics just to fulfill my desire to be a parent. There was more but it doesn’t really matter in the context because it was mostly about money and the economy and stuff. But basically she accused me of trying to practice eugenics and being ableist because “so what if my child is disabled I should still love it” which obviously wasn’t my point. I would love my child if I had one, even if it was disabled but creating one in my body just isn’t the move for me. So idk AITA?