Support your wife with however she wants to feed. Breast fed only? Ok do you want me at the lactation specialist. Combo? Get good with the bottle. Formula only? Formula has gotten REALLY close to as good as breast milk, no judging.
You can take some night shifts if the baby takes a bottle, even if your wife doesn't work and you do. Both of you should try to get 5 hours straight sleep per night, but you should know this will not work.
