Cloth mom's how did you get dad on board?!

Ma
I am reading some articles now but my hubby was pointing out to me "how cheap" diapers are at buy buy baby last weekend. I'm like babies use THOUSANDS of disposable diapers babe.
How can I get him to realize it will save us money? I'm already stressing about how we're going to afford child care if my mom gets this new job (she was going to watch in summer). I even showed him how a simple insert worked and told him it's not that bad. He used to say he's not gonna change diapers, now I think he realizes that will mean we would fight lol and child abuse.
He thinks we're gonna be all set from our shower. I'm like ummm kids wear diapers for like 2 years. I just saw a stat 9000 diapers in 2 years ughhh! omg?!!! 
I am the "accountant" for our finances and I'm stressing bc I need to save almost $5k just for me to take maternity leave(that's only including my student loans, car note, and health insurance while on leave) so obvy I'll do things to save us money.  We both have sensitive skin so it makes me nervous to try to do throw away diaper stock piling too. Financially we're in better positions than our parents were but we don't have a lot of extra money ever since my husband took a job closer to home. I'm getting stressed thinking about all the money & he's like don't worry about it.... 🤦🏼‍♀️🤦🏼‍♀️🤦🏼‍♀️ but how can I not?!