New job Help!

So I been without pay for a while and I been getting money here and there from different sources. I just applied and got an at home job position. It is a full time position that starts on December 2 with two weeks of training. The thing is I can deliver my baby between December 6th and the 18th. Maybe sooner. They said that they do not do time off consideration before the 3 months. I do not know what to do. I do need a stable job but this is putting me in a bad position. Do anyone have any advice? I don't know what to do, I need help!?!