Well, what do you mean by afford?
I probably, in theory couldn't afford to have ds2. On paper.
We have a 3 bedroom house so they share a room, we now only have 1 car and I walk to work, I keep ds1 clothes for ds2, I cut back on everything. Because we had a third child.
So technically, I couldnt afford him.
However, he has a roof over his head, clothes to wear, food to eat, days out, holidays, and lots of love. Lots of it.
So it depends on what your definition of afford is.
Dd was born when I was 19 and DH was 22.
We lived in a 1 bed flat. We had no car, almost every penny went on childcare and rent. So again, we couldn't really "afford" her.
She is 14 now and working towards taking 3 GCSE a year early. She's amazing. So I guess that not being able to afford her wasn't the end of the world.
And, just in case people get narky, we have never been on benefits. Not that I see a problem with anyone getting the support they need, but we were not entitled to anything.
FWIW, state benefits are there to support people who need them.
And IMHO if the op is in that situation where she needs help from the state as everyone seems to assume, well FFS, a newly single parent with 8 children? Would anyone actually begrudge her any help?