Oops, it doesn't look like 'bundle of joy day' is a national day..

Other days

aloxolt

Aloxolt Day
lisp

Lisp Day
slime

Slime Day
ask out your crush

Ask Out Your Crush Day
eat what you want

Eat What You Want Day
camera

Camera Day
offer

Offer Day
china

China Day
book

Book Day
pick me

Pick Me Day