Telling your SO yall Cant afford a baby

Im in the yellow ❤ we REALLY want a family but i dont think we should right now but he does not care he claims he will take care of us. He has truck payments, rent, comcast contract(wifi tv home phone) rent 300$ a month, groceries, gas(truck is a gas guzzling dodge) should i discuss waiting for a family or trust him?

Hes 24 it will be his first child and mine im ready im just scared but ohhh so ready, everytime were in the store he wants to look at baby clothes or he will stay on Cabelas website looking at baby stuff.