Amazon diaper subscription

Would you recommend doing this? And if so, what’s the best way to work the system?

I’m not due until December, but I wanted to get a couple boxes before my daughter arrives. It looks like it’s 20% off since I’m prime— which sounds like a cheaper price then Costco!

My question is, because I have to “subscribe”.... can I cancel my subscription immediately after I get the first box? I don’t want to end up with several boxes if my daughter cannot use them.