And..
Add in the pure joy that you will never experience anywhere else when you hold your little one as she or he has just been born.
The joy you will see in the eyes as he or she takes their first steps
The same when they look at you with a smile that can't be reproduced as they pedal their first "two wheeler"
The joy of watching them walk down the aisle to receive thier HS diploma.
Yes, there are nightmares.
Spending a entire night with a kid with the flu vomiting all over the 4 sets of sheets you have for their bed.
Getting a call that your 12 year old daughter was hit by a pickup truck and launched 47 ft thru the air but miraclously landed in some guys hedges and "just" came out of it with a broken collarbone and 3 broken ribs.
Been there, done that.
It's all worth it in the end.