From admitting to having no clue of the whole parenting thing to their weird pregnancy cravings, these famous mums got very candid about their pregnancy, giving birth and becoming a mother.
We love to hear that having a star on the Hollywood Walk of Fame doesn't make being a parent any less difficult...
1. Jessica Simpson
'People always say that pregnant women have a glow. And I say it's because you're sweating to death. I think they just tell pregnant women they're glowing to make them feel good about themselves.'
2. Kim Kardashian
'I recommend hiding for a good year and having no pregnancy style. That's what I recommend. If you can do it, hide. Never leave the house.'
3. Kate Winslet
'Having just had a baby, I'm not going to be thinking about my arse.'
4. Gwyneth Paltrow
'Some days I feel like everyone in my world has plugged themselves into my kidneys. I'm so tired.'
5. Fearne Cotton
6. Anna Faris
'I don't know what I'm doing as a parent at all.'
7. Maya Rudolph
'Honestly, because it's my third, I feel like I've been pregnant for like six years, seriously.'
8. Rebecca Romijn
'I can't move anymore...I'm a beached whale! I have not been without a bra this entire pregnancy. I refuse. I'm not taking any chances. I'm determined to keep the puppies up!'
9. Kristen Bell
'I feel like, when I arrive at the hospital, I want a glass of whiskey, I want the epidural in my back and I want to get hit in the face with a baseball bat.'
10. Mila Kunis
'They're amazing. They've tripled in size. I was a 34A; now I'm a 36C. I'm so excited! I'm telling everyone I know, 'Go ahead, touch them!' Without being an a-hole, I have to say, I love being pregnant.'
11. Amy Poehler
'I ate two waffles, a banana and cereal with blueberries. And that was between my two breakfasts.'
12. Olivia Wilde
Baby brain is real. I should not be permitted to operate heavy equipment including iPhones.— olivia wilde (@oliviawilde) April 4, 2014
13. Jennifer Connelly
'I had to stand in front of my refrigerator, which was open, dipping pretzels in cream cheese and stuffing them in my mouth. If I did that, I was good. Otherwise I was nauseous.'
'It's f**king hard, I thought it would be easy. Everyone does it, how hard can it be?'