getting a job at 6 months pregnant?

I was a secretary at a company that closed down a month after I found out I was pregnant. My fiancé told me I should just stay home. I like the idea of staying home while pregnant and for a while after the baby's born. But now we're always arguing about money and he says I spend too much of his money (which I hardly spend anything on myself). He always says it's "our money" but when he's mad he calls it "his money" and just acts like hey you wouldn't have all this stuff if it wasn't for me. I really don't want to get a new job right now. But the extra cash would help a little bit and I'm sick of him arguing about "his money" and now I'm 6 months pregnant. I don't know what to do.