How can I get him to understand that everything's going to be ok?

My fiance and I have been trying to conceive for over a year and we have been through a lot of disappointments in that time of it just not happening for us. I feel like this really could be our month but he doesn't want to get a pregnancy test he wants me to wait. Says I'm pushing too much and that's he's scared. I'm scared too. After so many negative pregnancy tests, and times where I thought it could be and than AF showed up. I want him to know and understand that no matter what happens this month that we'll still be ok? But I don't know how to make him see that.