Wow! Four kids! You really know what you're doing then!
Wow! Four kids! You're a busy mom!
Ho-ly, four? Why?
Don't you know how it happens by now?
Were you just going til you got a girl?
You got your girl, then!
You look great for a mom with four kids!
So you don't work outside the home?
You must just stay home with your kids, then?
How do you do it?!
I don't know how you do it.
I can't stand the baby stage.
Just wait til they are all teenagers.
Are these all yours?!
I could never do it, I don't have the ________ (patience, stamina, ability to deal with sleep deprivation, etc)
Wow, you're crazy!