Happy #BumpDay! Olivia Wilde, Jaime King and More Show Off Their Bellies to Raise Awareness for Maternal Health

08/03/2016 at 03:15 PM ET

Nothing like baring your baby belly — especially when it’s for a great cause!

On Wednesday, Olivia Wilde, Jaime King, Vanessa Williams, Nicky Hilton Rothschild and more took to social media to support the second annual #BumpDay which, according to its website, was launched in 2015 in an effort to “help raise awareness about the need for maternal health care worldwide.

“Over 830 women die every day as a result of pregnancy-related causes,” the site continues, adding that most of these deaths could be prevented with access to quality maternal care.

“Join me today on #BumpDay to ask Congress to pass the #ReachAct so all moms have healthy pregnancies,” expectant mom Wilde, 32, wrote next to a pretty photo of her smiling self in a pink bikini.

Olivia Wilde Bump Day 2016
Olivia Wilde/Instagram

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#Ad Happy #BumpDay Mamas! @WhatToExpect Celebrating with #Diclegis (doxylamine succinate/pyridoxine hydrochloride) because it’s helped me throughout my pregnancy! Sharing my Diclegis bump in support of happy and healthy pregnancies. How cute are these little Diclegis tablets! – For Moms who are waiting for morning sickness to end, you should know that some women, including me, have it throughout their entire pregnancy. Thankful Diclegis is helping me manage my #morningsickness Ask your healthcare provider about Diclegis today! – For US Residents Only – Diclegis is a prescription medicine used to treat nausea and vomiting of pregnancy in women who haven’t improved with changes in diet or other non-medicine treatments. – Limitation of Use: Diclegis hasn’t been studied in women with hyperemesis gravidarum. – Important Safety Information Do not take Diclegis if you’re allergic to doxylamine succinate, other ethanolamine derivative antihistamines, pyridoxine hydrochloride or any of the ingredients in Diclegis. You should also not take Diclegis in combination with medicines called monoamine oxidase inhibitors (MAOIs), as these medicines can intensify and prolong the adverse CNS effects of Diclegis. – The most common side effect of Diclegis is drowsiness. Do not drive, operate heavy machinery, or other activities that need your full attention unless your healthcare provider says that you may do so. Do not drink alcohol, or take other central nervous system depressants such as cough and cold medicines, certain pain medicines, and medicines that help you sleep while you take Diclegis. Severe drowsiness can happen or become worse causing falls or accidents. – Tell your healthcare provider about all of your medical conditions, including if you’re breastfeeding or plan to breastfeed. Diclegis can pass into your breast milk and may harm your baby. You shouldn’t breastfeed while using Diclegis. – Additional safety information can be found at www.DiclegisImportantSafetyinfo.com or www.Diclegis.com. Duchesnay USA encourages you to report negative side effects of prescription drugs to the FDA. Visit www.fda.gov/medwatch or call 1-800-FDA-1088.

A post shared by Emily Maynard Johnson (@emilygmaynard) on

Last year‘s #BumpDay — an initiative backed by WhatToExpect.com, International Medical Corps, United Nations Foundation and 1,000 Days — saw huge successes over both Twitter and Instagram, trending at the top of both platforms.

The campaign is encouraging expectant moms, groups of moms (in settings like prenatal yoga classes and workplaces) and even dads to join in on the movement, with the latter group posing alongside bump-bearing loved ones.

“Clearly, there is no more pressing global issue affecting our entire future than the health of pregnant women around the world,” Heidi Murkoff, author of the What to Expect series, wrote in a 2015 blog for Huffington Post the week #BumpDay first launched. “Yet, unbelievably, there is no single day devoted to it.”

“Healthy futures start with healthy beginnings, and the health of the world’s mamas-to-be is linked inextricably to the health of our world,” Murkoff added. “We can shape that future, one mom, one bump, one baby at a time.”

Jen Juneau

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Showing 9 comments

mer on

Olivia Wilde is gorgeous. And I love that she’s make-up-free.

Just Sayin' on

Totally agree about Olivia! She’s glowing!

3Cheers on

Poor Xander…another half sibling he won’t have any contact with

GirlCrush on

I agree @mer – Olivia Wilde is beautiful! Unlike 99% of the celebs who cake on makeup to try to look perfect, Olivia looks radiant and gorgeous all natural. Also, I’m not a fan of John Legends wife (Chrissy?) but I’ve seen her pictures after baby on People and she is typically makeup free, hair disheveled, and unwashed – You can also tell her baby/family is priority instead of looking perfect for the paps. You go girls for not succumbing to the narcissists…Yes, we all know who I’m referring too! 😉

PrinccesssssKate on

Nice of Nicky to turn the event into a big ad for big pharma, as if she doesn’t have enough money.

PrinccesssssKate on

My mistake Emily Maynard is the profiteer

B on

Don’t know who most of these girls are…

Anonymous on

Emily Maynard’s post is SO tacky! You should never take medication for morning sickness, if you have hyperemesis gravidarum yes, otherwise why risk it? We do not have a full understanding of how taking these medications affects babies in the long run. Such a bad idea unless absolutely necessary

educator on

i´ve loved it being pregnant and i enjoy women being pregnant, thats some kind of hope for me 🙂