with me it's alcoholism. And though they say they have not found a gene my family is proof there is something going on there. And I have had other medical doctors say they are sure of it.
So if my donor had close family with chemical dependency, I probably would have moved on.
I, too, feel that we have additional blessings that, though we don't know for sure, we are pretty certain clinical depression is also not in her family, and DH and I both have had our bad bouts with it.
You are being a good mommy before the fact by watching out for your little ones. do what you need to do honey.