11. Your career will suffer
Point #11 is not necessarily a bad thing. Having a child is a forcing function, requiring you to really prioritize what's important (and not important) in your life. All of us only have 24 hours in the day. All of us have limits.Also, be prepared that not all fathers (especially in the corporate world) will see eye-to-eye. My relationship with one of my mentors dissolved practically overnight when my priorities shifted from work to home; I only realized later on that when his 3rd child was born, he threw himself at work even more. Some men find work as a way to escape life at home. I now understand why.