1st time Aunt; what do I need at my house for baby?

RyRy

SIL is pregnant and whether it will be babysitting or her just here for visits, the baby will be at my house a lot.

What all should I have at my house for her baby? I figured extra diapers, wipes bottles and a pack and play maybe? Just want to make sure we are prepared here also. We do not have kids yet, so not sure what I’d need. All suggestions greatly appreciated.