Am I selfish for not wanting anymore children?

Cheyenne

My son is 11 months old and I love him so much but I seriously don't think I want anymore kids. Motherhood is exhausting! He is so spoiled and it seems like he's constantly crying if I'm not around him. Everyone always says it's good to have at least two kids and that was originally my plan but I don't think that's gonna happen. Does anyone here only have one child or plan to only have one child?