As of this writing, I am 23 weeks pregnant. Sometimes it feels as if I’ve been transported to a foreign country – at turns exhilarating, terrifying, exciting, and overwhelming. It’s quite clear that I don’t yet speak the language. There are catch phrases that I have to learn – such as Ferberizing and Dr. Sears’s theory on attachment – and objects whose existence I had been happily unaware of, such as co-sleepers and My Breast Friend. Who knew I would need such things?

Apparently, millions did, including the people behind Destination Maternity, an all-in-one superstore that opened in Westchester last month. Housed in the Source At White Plains mall, it brings together the baby store the Right Start with three maternity clothing shops – Pea in the Pod, Mimi Maternity, and Motherhood Maternity (all owned by the same company, Mother Works) – and Edamame, a maternity spa (also owned by Mother Works). Throw in a studio offering classes such as prenatal yoga, a bar with complimentary (nonalcoholic) beverages, and a comfy waiting area with parenting books and magazines for those who have been dragged to such a place (read: husbands), and you’ve got a pregnancy-parenting trial by fire.

The front of Destination Maternity houses the Pea in the Pod selection. Of Mother Works’ three maternity lines, Pea in the Pod is top shelf, offering its own eponymous brand, designer labels such as Diane von Furstenberg, Chaiken, and Lilly Pulitzer, and an assortment of stylish jeans like Sevens and Citizens of Humanity. I was admiring a beautiful, sheer, empire-waist Tocca top with a smattering of colorful sequined circles ($185), when a young frazzled woman rushed past, trying to soothe her wailing baby. “It’s all right, it’s all right! We’re finally done in here,” she said.

I blinked. There was no denying where all those cute maternity clothes were leading.

Finally, I got up my courage and went into the Right Start, which carries a wide selection of baby essentials, from Maclaren and Bugaboo strollers ($150-$730) to developmental toys such as Lamaze mobiles ($16) and Jumparoo swings ($60), and glider chairs ($480-$580). One of the shop’s best features is its manageability. Said a friend accompanying me who is also pregnant with her first child: “You can dip your toe in and scurry out when it becomes too overwhelming.”

After a quick stop at the complimentary bar – offering water, orange juice, and Saltines (only a place catering to pregnant women would stock Saltines, the cure-all for morning sickness), I headed into Edamame.

The tiny spa, directly across from Destination Maternity’s beverage bar, is done up in a Japanese minimalist style, with cool earth tones, bamboo plants, and a sleek, modern water sculpture. After changing, I was ushered into a cozy waiting area, offered water or tea, and handed a release form. Somehow the legalese of it – absolving the spa of any wrongdoing in the event that a horrible calamity might befall me or my yet-to-be-born child – didn’t exactly match the ambient lighting or soothing music, but I signed anyway, and it was relatively easy to put it out of my mind once I was taken into the massage room.

The spa offers numerous treatments, from facials and massages to body masks. I chose the “Mom-to-be New Life Massage,” a 50-minute, $98 option that the spa refers to as its signature service. I’m now at the point in my pregnancy where it is both uncomfortable and ill-advised to lie on my stomach, so I was thrilled to make a discovery upon walking into the room: There on the massage table was a body pillow designed specifically for pregnant women, with the center cut out to comfortably accommodate swollen bellies. The sensation of being able to lie stomach-down was one of the highlights of the treatment, although the massage itself was a pleasure; the masseuse had a gentle touch and the treatment included such pregnancy-related perks as butter cream moisturizer (to mitigate stretch marks) and mint juice applied to the legs (to relieve water retention).

Back out in Destination Maternity’s main space, I noted the children’s play area and the waiting area with black leather armchairs and a 42-inch plasma TV (“The fathers love that,” one employee told me), located just beyond the nursing bra section. In the glassed-in exercise studio, a belly-dancing class was taking place (two students, one teacher, no pregnant women as far as I could tell); the schedule for March also listed “Breast-Feeding 101” and “Riding the Waves of Labor” classes. The clothing departments of Mimi Maternity and Motherhood Maternity (Mother Works’ mid- and lower range of clothing) lay beyond. One could spend an entire day here.

And that’s just the idea, said Rebecca Matthias, president of Mother Works, which has opened 10 Destination Maternity stores within the last year. (Only three, including the Westchester store, boast spas.) “We tried to think of everything a pregnant woman could want and put it under one roof,” she said from her office in Philadelphia. “The response has far exceeded my expectations.” Ms. Matthias spoke of giving the stores a six-month test “to work the kinks out, perfect them” before unrolling a number of other superstores across the country, including in Manhattan. “We’ll be there within a year,” she predicted.

If only labor and child-rearing promised to be so easy.

Destination Maternity, the Source At White Plains, 5 Maple Ave., 914-948-1279, www.destinationmaternity.com.