
Jessica Alba enjoyed another day of beach bliss while enjoying a family holiday in Hawaii.

The 36-year-old, who announced she's pregnant with her third child last week, put her changing form on show in a stylish black bikini over the weekend.

The actress has been relaxing with her husband Cash Warren, 38, and their two children Honor, nine, and Haven, five.

Bumping along nicely: Jessica Alba enjoyed another day of beach bliss while relaxing with her family in Hawaii over the weekend

'Baby on board': The 36-year-old announced she is pregnant with her third child last week

The brunette put her growing belly on display in her black two-piece while she splashed around in the water.

The swimsuit featured a strapless top with a clasp in the back, and a low-cut neckline that provided a peek at her cleavage.

The cheeky bottoms left part of her pert derriere exposed and boasted peek-a-boo cutouts on the sides, due to a pair of floppy ties.

Putting her baby bump away... The actress went to cover up her growing belly after a while

Brunette babe: The Into The Blue star left her long locks down in beachy waves appropriate for the island getaway

Hiding her belly: The celeb tied a patterned wrap around her waist to keep her pregnancy tummy out of sight

At one point, the expecting mother opted to cover up her baby bump.

The Into The Blue alum reached for a muti-colored, patterned shawl that she had left on a rock while she waded in the water.

The California girl tied the wrap around her waist, obstructing her pregnancy tummy from view beneath the red, white, and black fabric.

Fun in the sun: The California girl shared a brightly-colored float with her 38-year-old husband

Packing on the PDA: Jessica couldn't keep her hands off her hubby as they waded in the water

But before she decided to cover up and head back to shore, Jessica packed on the PDA with Cash, and flaunted their love in the lagoon.

The Los Angeles native swam up to his wife, bearing an orange-and-pink float that she eventually climbed aboard.

After a while, the lovebirds ditched the inflatable raft to cuddle up in the water, as the mother-of-two put her arm around her longtime love's shoulders.

Drying off: She and Cash eventually left the lagoon and toweled off on the beach

Done with the water: The Good Luck Chuck alum decided she'd rather spend some time on land, instead

Lounging around: The expecting mother relaxed on a massive chair

However, there came a point where the star and her hubby decided to ditch the water, and instead relaxed on the beach.

They dried off with crisp, white towels as the beauty removed her wrap.

She then lounged on a massive chair, protected from the sun thanks to a giant, green, overhead covering.

Baring her baby belly: Jessica's black bikini exposed her midriff, giving a glimpse at her baby bump

Beauty in black: The two-piece boasted a low-cut neckline that flaunted her cleavage

Sun's out, buns out: The bottoms provided a peek at her pert derriere

She has documented some of her trip on social media, raving about the 'magic' sunsets.

The Sin City: A Dame To Kill For star revealed her surprise baby news on her Instagram account on Monday.

Jessica posted a cute video of her daughters - holding big number one and two balloons, with the actress holding one that read number three as she displayed a visible baby bump.

Baby blabber: She announced she was pregnant with the help of her two kids, Honor, nine, and Haven, five

She captioned it: '@cash_warren and I are officially going to be outnumbered #babyonboard #herewegoagain #blessed (sic)'

Jessica is incredibly close to her daughters and regularly takes them with her to work with her to ensure she is never away from them for too long.

She explained: 'I go on so many business trips, and they're usually two to three days. I'll bring just one at a time and it'll be like, 'Mom's gonna bring you on a special trip. We'll get to have a sleepover, we'll get to order room service, we'll get to rent a movie. It's really fun!

Quality time with the kids: The little ones joined their famous mother on the Hawaiian vacation

'I just try to make the time that I spend with them is quality. We like to go on walks and we like to watch movies and barbecue. They love to take a bath and then get back in their pajamas for the rest of the weekend.

'Honor is reading a series called Amulet. We finished Beezus and Ramona. Haven loves Cat in the Hat and Green Eggs and Ham because I do silly voices. There's also Freckleface Strawberry, Julianne Moore's book. She likes funky, funny characters.'

And the Hollywood star previously revealed being pregnant helped her learn to 'respect' her body.

She shared: 'It's incredible being a mom, I love it. I was much more stressed and concerned about my body before I had kids. But now I know how silly and unimportant it is, so it's certainly given me perspective. Being pregnant and giving birth gave me a new found respect for my body, it's amazing.'