Of course YANBU
There are always women on here with shite husbands pretending that it's normal to be married to a selfish, lazy lump.
A parent of a newborn baby, particularly a first baby, has no business going on the piss for hours and being hungover the next day.
It's all hands on deck in the early days (they don't last long, despite how it feels now :) ) even where there aren't additional problems like reflux to make things even harder.
A good husband and father knows that his place is at home with his stressed out wife and sick baby.
Why doesn't this guy? Has he always treated you as less important than he, or is this a new thing?
I think you need to have a serious conversation with him about his responsibilities to his new family (hint: they come before tennis and drinking)
Don't allow yourself to become one of these women telling a new mother she is a "princess" because she wants her husband to help with their baby.
I know you are tired, but don't allow patterns of you being the accommodating little wifey (dancing attendance on the big man who needs his rest and free time while you work yourself into depression and anxiety) to get established now.
There are men who step up to the plate when they become fathers, men who know that a real man takes on his responsibilities, and doesn't shirk them out of selfishness and laziness.
Can your husband learn to be one of them?