Trying not trying baby fever and late!

Donna • First time mom of a beautiful baby boy married to a handsome mechanic just turned 21!
My husband and I started ttc this month but after a week of it he changed his mind saying he doesn't think we're ready yet. Problem now is I'm 4 days late! I'm beyond excited just by the fact AF hasn't showed yet but haven't talked to him about taking a test yet. I would like him there for support but totally scared to talk to him about it now that he's saying he doesn't want to start a family right now. What do yal think I should do?