2.
And when she learned what it's like to change a baby boy:
3.
When Hilary Duff had "one of those days" while shopping with her kid:
5.
And when he got a little philosophical:
6.
When Jenny Mollen struggled with the idea of her son growing up:
7.
When Snooki "handled" this breast-feeding nightmare:
8.
When Conan O'Brien embraced his role as his children's first teacher:
9.
And when Joel McHale probably regretted giving his kids sugar:
10.
When Mario Lopez articulated this all-too-real struggle:
11.
When it was (or wasn't) nap time at Alyson Hannigan's house:
12.
When Pink reflected on how her life has changed since becoming a mom:
13.
And when Kelly Clarkson marveled at the fact that she IS a mom:
14.
When Neil Patrick Harris shared this "we've all been there" moment:
15.
When Busy Philipps was finally able to stop stressing over preschool admissions:
16.
When Michael Ian Black suffered from Frozen fatigue:
17.
And when he decided he wasn't one of those parents who let their kid win:
18.
When "the sickness" hit Tori Spelling's house:
19.
When Mel B was deep in the school drop-off grind:
20.
When parenting kept Anna Faris humble:
21.
And when Christina Applegate tweeted the kind of thing we've all thought, but kept to ourselves: