What would you do?

So my husband and I have been trying to convince for about 5 years now and nothing I will be 35 in August(I really don't wanna be 40 and pregnant hell no!) And he'll be 41 in August as well we have none together but I have 1-15 an he has 2. My plans are to get on birth control if nothing happens by my birthday but he says Oh hell NO! HELP!!!