From PEOPLE Magazine Click to enlarge
On most mornings in the Alba-Warren household, the day doesn't truly begin until 3-year-old Honor Marie scurries down the hallway into Mom and Dad's room, wearing her usual pajama-and-tutu ensemble. "She's always like, 'Hello, sweetheart, how are you doing this morning?'" says Jessica Alba, recounting Honor's daily greeting to her new little sister, 2-month-old Haven Garner. "She has to kiss Haven when she goes to school and leaves. She's so sweet. She calls Haven her baby."

Since arriving on Aug. 13, weighing in at 7 lbs., Haven has made a memorable impact on her mom and dad as well. "She looks like me when I was a baby," says the Fantastic Fouractress, 30. "My same features." It's a dramatic difference from Honor-Alba's first daughter with her husband of three years, producer Cash Warren, 32-who is a mini version of her father. "When the two of us made such a different-looking kid," says Alba, "it was like, 'Okay, I guess we can do this too!' It was a nice little surprise."

Since day one, life with baby No. 2 has been an unexpected journey for Alba and Warren, who decided to see their new addition before naming her. Born in the caul (the term for an infant born while still inside its amniotic sac), Haven inspired her own name. "The morning after she was born, Cash was holding her and said, 'She was born in her safe haven.' And so there we had it," recalls Alba, who had been a fan of the name from the moment a friend suggested it (Haven also has Warren's middle name, Garner; Honor has Alba's middle name). And seeing Warren hold their newborn daughter that morning literally took Alba's breath away: "I felt butterflies and that first-love tingle you get when you're prickly all over and your heart is beating so fast you can't get a deep breath."

Adjusting to family life as a foursome has been a joint effort. "We tag-team," says Alba, with a laugh, of juggling two kids. "There's really no free moment. It's full-on." When Alba, who has had additional help from her visiting mother, Catherine, is breast-feeding in the middle of the night, Warren is by her side. "He'll rub my head when I'm feeding Haven, and he'll kiss her," she says. "It's been a great partnership."

One that's even better now that Haven is reacting to them. "She started smiling. It's really sweet," says Alba. "We were on my bed yesterday morning, and Cash was whispering to her and kissing her, and she was smiling the whole time. If you clap her hands together, she smiles."

The happy couple have quickly settled back into their routine, with Alba easing back into her workout regimen and already showing off a svelte post-baby body. She credits her slimmed-down figure to working out with her trainer Yumi Lee three to five times a week and a disciplined diet of fresh produce, lean meats and whole grains. "I don't indulge as I used to," she says, adding that bouncing back from pregnancy was easier the second time around. "After Honor, I was not getting out of the bed for at least three weeks. This was just a totally different experience; my body knew what to do."

In addition to raising Honor and Haven, Alba has also been focusing on the Honest Company, her monthly subscription service of eco-friendly baby and family essentials that launches in January. "My passion comes from being a mom, and this company has to do a lot with making a better life for my kids and for other people's kids," she says. She's also on the board of Baby2Baby, an L.A. charity that distributes baby gear to needy families. As for getting back to the big screen, she is reading scripts but not rushing things. One project that's not in her immediate future: a third child. "I can't even go there," she says, laughing. "Never say never ... but I can't even think about it right now."

For now, Alba's main concern remains diapers, princess costumes and her family, which as a kid she envisioned being much like a Disney movie. "I thought my pumpkin would turn into a carriage, I would have my glass slippers that fit perfectly, my Prince Charming would find me, and we would live happily ever after," she says. "But the reality of my life has exceeded my wildest dreams."