Carrying excess weight around your middle can be uncomfortable for any expectant mother.
But Kourtney Kardashian has embraced her changing shape by slipping into a bikini on holiday.
The reality star, 32, is currently holidaying with her family in the scorching La Romana, Dominican Republic, where temperatures are currently soaring into the region of 30°.
Blooming lovely: Kourtney Kardashian is proud of her body as she flaunts her shape while playing with Mason
Expecting: Kourtney Kardashian shows off her baby bump on holiday in La Romania, Dominican Republic
While her stomach is clearly in bloom for the new arrival, the rest of Kourtney still remains slim.
Auntie: Kim was seen looking after her two-year-old nephew Mason
Relaxing: There seem to be plenty of water toys for Mason to play with in the pool
Water baby: Kim climbs out of the pool after cooling off in the scorching 30° heat
Never one to shy away from a moment for flaunt her figure, Kim too poured her curves into a bikini.
Daddy duties: Scott Disick played with his toddler Mason to give mummy a break
Learning young: Mason seemed rather keen to mimic the perfect posture showcased by his auntie
Kim tweeted: 'Workout time!!! Gonna focus on abs today.'I've been trying to change my bad eating habbits (sic) - slow process but its working. I feel so much better! Sugar, dairy & gluten free. HARD!'
Sisterly love: Kylie and Kendall Jenner have also joined their half-sisters on holiday
Living the high life: The girls are still only teenagers, but have accrued a huge fanbase
She added: 'I will have sweets every once in a while & dairy but this is a huge step for me! Its a lifestyle change but I'm loving it so far!'
Younger half-sisters Kylie, 14, and Kendall, 16, Jenner also went along to soak up some rays.
The girls are fast-becoming little divas in their own right, accruing millions of online followers on Twitter, securing modelling jobs and hoping to star in a spin-off television show of their own.
Family on tour: Kris Jenner leads the way as the girls and husband Bruce follow
Got enough luggage? The girls seemed to have packed far more than just the odd bikini
It won't be long before this trend goes global: Kylie was seen wearing socks and flip-flops
Dressed in a sea blue drape, aviator shades and large hoop earrings, mother Kris Jenner was seen leading the troops as husband Bruce hung back to keep an eye on the laggers trailing behind.
Unsurprisingly, there was oodles of luggage, no doubt full of designer clothes the girls will wear.
Designer obsessed: Kris was seen carrying a Chanel tennis racket
Cheer up, you're on holiday: No one seemed in particularly high spirits as they landed
Quite the commotion: The family relied on carts to ferry them around the airport
We're all going on a summer holiday: Kris speaks to the tour guide as her brood follow