Single woman expecting?

So a family friend of ours died yesterday leaving behind his wife who is expecting. I feel so horrible about the situation and really want to help get some things for the baby as I’m sure the new mother is just completely overwhelmed. I plan to give a box of diapers since I’ve been stock piling and have plenty of size ones. I also use this coupon for the diapers which is basically buy a box, get one free so it’s basically like giving her a box I got for a really good deal. What are other things that I could give that are necessary but won’t be too costly for me? Thanks!