It was pretty obvious from the context that the person you're replying to meant "working" as in "working a job for money".
If I was woman and I decided to have baby, I'd probably be either very stressed with my current job, or looking for something part time.
Now imagine if I live in Sweden or the like where the state hands out money for raising children.
The personal and societal reasoning about parenthood changes, but they still do have babies, despite being on their own. For many people, children is their retirement plan.
Anyway, it's not the same to have a nice monthly stipend than a small cheque far in between. Spain, for example, is considerably worse financially-wise for raising a kid than countries more up north. Not only because the country job market is shit (which is important even if you don't work, because your partner has to bring money home), but because the state really doesn't do much about it.
Now imagine living in a place where there isn't really a functional state to look for.