is it a phase?

Guys i'm going through a phase where i cant see myself wanting kids lol.. like sometimes i do, other times i dont. And im gonna come across like a selfish asshole but idc, here goes. So basically kids are expensive, they make you fat and then it takes months and months to lose it all. I've been so career driven and love spending on myself and my man. I commend all the mothers that are selfless and will so anything for their kids but maybe what i'm going through is a phase.. i mean when i hold a baby i am absolutely in love but then later on im like NA IM GOOD