You asked what you didn't know about kids until you had them... 

My instant response was when you think you want babies, you really should be looking at whether you want to be a parent to a helpless baby that turns really quickly into a toddler, who instantly morphs into a grade school child, that breezes through the teenage years and all-of-a-sudden-oh-my-gosh that teenager drives away to college and you look at yourself in the mirror and realize you did your best. Your life is never the same after that "baby" enters your life and you should really be asking yourself if you think you can be selfless for 22 years. I am glad I did and was, but what a whirlwind! 

Shelley