As soon as he realises how much work a baby is going to be on a day to day basis he will change his mind. He's not going to be able to run his business and look after your baby and he'll see that you really do need to be at home.

My DH has said he only wants me to take 12 months off (which is what we are saving for right now) and then go back to work full time. But I can almost guarantee that he will change his mind when he realises his little guy/girl has to spend everyday in childcare and we would miss out on that time with them. You can't get those years back but I don't expect him to understand that until he actually does become a father.

Just go with the flow for now babe - he will soon realise that you need to be at home and be "Mum" while he starts bringing home the bacon.