My instinct was no when I was asked to have my 10 week old niece.
My DDs were 8YO, 6YO (ASD/ADHD) and 6 months old at the time, I was a single parent that had just left an abusive marriage, living in a tiny 2 bed, and was due to start University in a few months time.
I had/have CPTSD/ADHD, and I’d had zero contact with my sister for around 5 years as she’s a violent alcoholic (which has escalated into drug use - including whilst pregnant).
I was all the cunts under the sun for saying no. I was horrified at the idea, was barely keeping my head above water as it was, and I just knew that if she had more, I’d be asked to have them, and that I’d end up with DSis at my door, drunk, screaming, trying to kick it in, bricking my windows etc, because she has previous form for it.
Never mind the fact that there were other family members in much better positions who could have taken the baby, nope, I was the selfish, horrible one that should have jacked in my degree, my children’s futures, whilst the other adults “supported DSis” - which they’d been doing for years, to the detriment of their relationships with my and my DDs. I was the designated Baby Raiser, and I wasn’t doing as I was told.
Don’t set yourself on fire to keep other people warm OP.
SW needs to find a more skilled foster family for the poor kid.