It is hard to beat the sex appeal of a blacky lacy bra and matching lace brief. The Amoralia Nougatine Maternity Bra and Lace Brief from Isabella Oliver manages to capture just the right amount of sex appeal and class. “Gorgeous underwear is one of those things that can instantly make us feel more feminine and sparkling. Why would pregnant women not feel the same? We design our collections so that that all our customers feel feminine and stylish, but comfortable too,” says designer Jules Canterbury.

Flaunt your sexy pregnancy curves in the French Lace Bralet and French Lace Tanga from Bella Materna (not pictured). The supple Italian knit and sexy lace are designed to support your bust (cup size goes up to E) while the sexy lace bottoms are designed to stretch to with your changing shape. Sexy mama!

The Lotus Lace Nursing & Maternity Nightie by Belabumbum ($68) from Due Maternity combines sexy style with comfort. The sexy lace detail highlights your cleave while the flowing fabric gently skims your curves. Once baby is born, the pull-over design makes for easy nursing.

Similar to the sex appeal of a little black dress, a little black nightie will have a similar effect on your man’s libido. The HOTMilk Slip Into Seduction Chemise features scalloped edges and a wide lace trim at the hem, as well as a 7 inch slit at each side up the sex appeal.

Check out more HOTMilk lingerie here.

Check out our pick of sweet maternity lingerie here!

The Belabumbum Viola Maternity and Nursing Nightie(pictured, $78) from DueMaternity.com is so stylish I would almost consider wearing it out on a date night! The flattering v-neck allows for easy pull-over breastfeeding once baby is born, while the soft flowing fabric flatter your curves throughout pregnancy.

The Anytime Nursing Gown (pictured, $98) from Bella Materna is an elegant lounging dress that can be worn throughout maternity and for nursing after baby is born. The supplice design will flatter your pregnancy and new mom curves, while the pull-over nursing access makes breastfeeding baby a breeze.

The Maternity Ruffle-Trim Jersey Chemise from Old Navy, pictured left, is as soft as your favorite tee. From the ruffle trim neckline to the empire-waist design, priced at only $15 this sweet sleepwear option is budget-friendly!

If you prefer lounge pants over a dress to sleep in, you will love the soft fabric of the Majamas MJs Maternity/Nursing Sleepwear ($59) from Tummystyle.com. They are designed to fit and flatter you throughout pregnancy and, after baby is born, can be used for nursing sleepwear. Sweet and functional!

Looking for a red-hot maternity dress? Check out our pick of the top sexy maternity dresses for Valentine’s Day.

It is hard to beat the sexy, yet classy elegance of a long black dress. I love how Padma ups the sex-appeal with a low-slung gold belt, dangling gold earrings and gold shoes.

See what other celebrity likes to belt her bump!

A sexy black dress, whether it is long or show, makes the perfect addition to every fashionable mom-to-be’s wardrobe! Get some black dress options here.

More pregnancy fashion:
3rd trimester maternity clothes guide

Pregnancy fashion style trends 2010

The 28-year-old, who said she is “really excited” to be a first-time mom with her husband The Dream, is due this month with a girl.

Christina wears a bump-hugging royal blue mini dress, accessorized with plenty of bling, including diamond jewelery, metalic silver clutch and rockin’ heels.

Check out pregnant Kourtney Kardashian wearing a bump-hugging mini dress here.

Love her sexy look? ccopy her style in the 2-1 Lace Maternity Dress-Skirt by Japanese Weekend from DueMaternity.com.

More pregnancy fashion:
Kourtney Kardashian says her post-baby body was photoshopped

Pregnant Paula Patton at Critics Choice Movie Awards

Pregnancy celebrity photo gallery

This Velvet Long Sleeve Ruched Maternity Dress in Barn Red, pictured, from A Pea in the Pod has got it all! From the sexy red color to the bump-hugging design and ultra-comfortable jersey knit fabric, this dress would be perfect for a date night out. The best part? It is on sale foar $39.99, originally priced at $185!

Even though red is the color of love, it is hard to beat the sex appeal of a black dress. The Maternal America Maternity Black Sequin Tie Dress from Pickles and Ice Cream (on sale for 469.77) is a sassy minidress/tunic that would look great paired with tights and heels or tall boots. Oh -la-la!

It is tough to beat the effortless sex appeal of a wrap dress. The silhouette is perfect for highlighting your beautiful curves. Sexy, yet elegant. Check out the Crossover Wrap Dress in Blue or Black(pictured, below, $59.50) from Gap.com.

More pregnancy fashion:
HOTmilk: maternity lingerie for Valentine’s Day

2nd Trimester maternity clothes guide

Gayheart has been spotted throughout her pregnancy wearing black leggings or skinny maternity jeans paired with tunic tops or long sweaters. This look is not only stylish, but comfortable!

Love her dark skinny maternity jeans? Check out the Gap full panel skinny jeans in dark wash (on sale for $49.99). They have updated their fit with a lightweight waistband that stretches over your belly for full support. The dark wash is slimming (yeah!) and stylish.

Get more 3rd trimester fashion tips here.

Check out more celebrity maternity fashion here!

“I kept myself in good shape during the whole pregnancy, eating healthily, meditating, and doing exercises,” says Bündchen. “I put on a little weight, but kept using almost the same clothes, with small adjustments on the stomach.”

She says that taking care of little Benjamin has kept her busy, leaving little time to exercise. “I still haven’t had time to go back to doing exercise. In the first few months, everything turns around the baby. But little by little you recover your form. What helps me is the fact that I didn’t put much weight on, and that I had a natural birth and am breast-feeding.”

Check out more celebrities post-baby bodies here:
First pictures of Heidi Klum after daughter Lou is born
Nicole Richie’s post-baby style: First photos
Kourtney Kardashian says her post-baby body was photoshopped

Comfort can be stylish: Dresses are a must-have for your 3rd trimester. They skim your curves beautifully, are comfortable and easy (no messing with matching tops and bottoms!). Whether you prefer a long maxi dress, a wrap dress or a cute sundress, you will look as good as you feel (or better than you feel!).

Leggings: Luckily for pregnant moms, leggings are back in a huge way! Pair black leggings with a long tunic top, sweater dress or button-front shirt, throw on some flats and you are golden!

Underwear and bras: You don’t have to spend a lot on underwear and bras — but you will most likely need a larger size than your pre-pregnancy size. Check out stores like Target or Old Navy to pick up maternity underwear or regular underwear in a larger size. If you plan on breastfeeding, you may consider picking up a nursing bra.

Sleepwear: Go for maximum comfort when sleeping. Whether you prefer a maternity nightgown or a tank top and underwear, look for stretchy and soft fabrics for maximum comfort.

Pictured is the Nicole Richie Spaghetti Strap Smocked Maternity Dress from A Pea in the Pod.

More pregnancy fashion:
Stretch your maternity clothes budget: 3rd trimester tips
3rd trimester maternity clothes shopping do’s and don’ts
3rd trimester feel good fashions

Follow these tips for a stylish 2nd trimester:

Stock up on basics: Your 2nd trimester is the perfect time to stock up on basics like solid tees, maternity jeans, maxi dress, wrap dress and, for those working moms, maternity pants and blazer.

Look for clothes that will grow with you: Details like ruching, tie-backs, side-buttons and wraps will all ensure your clothes will grow and change with you.

Maternity bra: If you have not done so already, now is the time to get fitted for a new bra. Most women find their breasts increase by at least one cup size during pregnancy. You may need to by a larger bra in your third trimester, so don’t splurge on an expensive bra.

Shoes: Your belly isn’t the only thing growing — your feet are, too! Thanks to pregnancy hormones, many women find they will need shoes 1/2 larger than their pre-pregnancy size.

Flaunt that bump! Forget about wearing oversized clothes! Today’s pregnant moms show off their baby bumps in form-fitting tops and dresses.

Pictured is the Ruched Tank Dress from IsabellaOliver.com.

More pregnancy fashion:

5 Tips for buying baby shower maternity clothes
Stretch your maternity clothes budget: 2nd Trimester tips
2nd trimester shopping do’s and don’ts

Many women find they can fit into their “pre-pregnancy” clothes without difficult. As your belly grows, the Bella Band is a great way to keep your pants or jeans up and disguises the fact your button is undone.

Get tips here on how to wear your “regular/non-maternity” wardrobe when pregnant.

Check out Kourtney Kardashian’s early pregnancy style here.

For dressier occasions, wear a beautiful flowing dress that draws attention away from your body and accentuates your gorgeous neckline. Throw on a pair of sexy, strappy heels because trust us, before long you won’t want to even look at high heels!

What about a maternity bra? Find out here if you should buy a bra now — or wait until your 2nd or 3rd trimester.One early pregnancy bonus — a more enhanced cleavage! Show off your assets in a v-neck top and long dangling necklace.

Check out our 2nd trimester maternity clothes guide here!
More celebrity early maternity style:
Claudia Schiffer early pregnancy style

Pregnant Leelee Sobieski early maternity style

Stretch your maternity clothes budget: 1st trimester tips