Will you be a stay at home mom?

Before I became pregnant my fiance always agreed that I would be a stay at home mom. Now that I actually am he says things like "where do you think you'll work when the baby is here" to which I response "home because being a mom will be my job". It makes me worry that he's going to want me to work. Maybe it's selfish of me but we already agreed to this, childcare is expense, he makes really good money and we've got money saved for the baby already. It drives me nuts when he says "my mom worked after I was born" yet his dad stayed home...

Do you guys plan on working or staying at home?