To have another babe who could also have ASD

[isitreallyfair]

I have a dc from a previous relationship, he wasn't diagnosed with ASD until his secondary school which was when I was also diagnosed.
Since then my nephew has been also diagnosed at 9 so there's a lot in our family.
DP is great with my DS but he'd like us to try for a baby.
I have said I think it's too risky because of there being so much ND but DP says I shouldn't think like that and it's a risk he's willing to take and love them regardless.
I'm not sure I'd have wanted to be born with my ASD as a risk someone wanted to take though as I find it very tough to navigate life this way.
DP keeps bringing it up though.
AIBU to bring a new baby into the world knowing full well the likelihood of ASD.

I have a 4 year old DD who is non verbal ASD with a genetic mutation linked with ASD and seizures. Touch wood, she hasn't suffered any yet but life is still very lonely, even after moving closer to family.

She is unlikely, at this juncture, to be able to live independently for the foreseeable.

I personally have no interest in any more babies at this point but I might personally reconsider (not guarantee) if DH wanted another and if DD was making progress.