Husband against my form of birth control

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Okay so I had our 2nd boy 3months ago, he's adamant about not having more kids which I'm fine with. But refuse to get my tubes tied, I did have a c section and could have done it there but im only 25 and am not 100% I don't want more kids in the future and I do think he'll change his mind later on. He also won't go get snipped so, I have been on the iud abd pills before but the iud didn't work out and I don't want something I have to take every day like the pill, and have heard infertility problems come with the shot so in my opinion the ring is the best choice. I will continously be putting one in after 4wks with no break week so no period and no chance for mistakes. But he's not on board with it bc I've never been on it and says it won't work. How can I prove to him that it's just as good as the pill ?