Cost of Diapers, Formula (Monthly) — The Bump
Early on diapers were more expensive because DD was in preemie sizes for the first few weeks and then newborn until almost 3 months so we used Pampers Swaddlers. I think they were about $20-$22/pack and we'd go through several packs a month. I can't remember exact numbers. Once she got to size 1 we switched to Luvs which are much cheaper.