[Chiefs_dip]

Two of my children through adoption were exposed to illegal substances while in-utero. Currently they are both super healthy but recently I had some language delay concerns with the older one. That child is at super high risk of those delays due to exposure.
It just brings up so much anger toward the birthmom who didn't treat their bodies right. Yes, I know I willingly accepted these cases and am totally willing to take care of my children. But I feel so protective of them that it angers me to no end that I couldn't protect them before I even met them.
I know this doesn't make any logical sense. That's why I am asking for any insight to work through this. I do love my children's birthmom but I am angry at the same time.
Any tips from Adoptive Mothers with older children?