help with budget for maternity leave?

EC
Just working on our budget for when I'm on maternity leave and I'm trying to get some realistic advice as to how much to budget for in the first couple months of baby's life. I am hoping to breastfeed and planning to use disposable diapers. I will be home with baby during this time so not paying childcare and we are planning to have all the clothes and gear already purchased when she is born. I'm assuming I will get some diapers at my shower based on what people have said. I'm not really seeing a lot of costs I need to account for in the beginning - other than medical bills obviously - but I feel like I'm being naive 🙄 any advice or things I haven't thought of??