To some, autumn heralds the arrival of fiery hued leaves clustering on the sidewalks, decorative gourds of all shapes and colors, and all things pumpkin spice. To us, it's all about the shopping – that “back-to-school" thrill we get when all the cool-weather merchandise starts hitting the stores. There's no reason to miss out on all the fun just because you're pregnant. A few strategic additions to your maternity wardrobe will ensure a stylish and comfortable season.

If you're going to buy one maternity piece this fall, make it a pair of Hatch's Night Out leggings. With stylish faux-leather panels at the front and flattering Lycra at the back, they're as comfortable as they are versatile. While they are a bit of an investment (like all the chic pieces in Hatch's collection) these leggings can be worn before, during and after your pregnancy. Need more proof you should scoop these babies up? Check out a few of the ways we've styled the leggings for different occasions.

Here are three ways you can style your bump with this layering fall essential.

1. WORK

For the office, pair the leggings with a crisp white button down tunic and a pair of this season's must-have slip-on mule loafers. This pair by Michael Kors is a steal! For chilly days, throw on a chic poncho-shawl in a neutral hue like gray or camel. Finish the look with a structured satchel and polished accessories.

  1. HATCH Collection, faux-leather leggings: $158 // 2. ACNE STUDIOS, Apollo fringe poncho: $380 // 3. LOFT Maternity, tunic softened shirt: $54.50 // 4. Michael Kors, Natasha mules: $134.95; 5. JENNIFER FISHER, orb silver-plated necklace: $295 // 6. OTTE NEW YORK, satchel bag: $535.

2. OFF DUTY

For casual days, you can't go wrong with a striped long-sleeve tee and statement jacket combo. We love Current/Elliot's roomy Infantry jacket, which can be easily worn post-pregnancy. Or, if you're feeling daring, sport an on-trend floral bomber like this style by Bluebelle Maternity. Cool kicks are a must. So do like the street-style stars and opt for a pair of classic Vans. In lieu of your favorite handbag, try a cute backpack like Manu Atelier's suede style in burgundy (the clever design also converts to a shoulder bag, so it's the best of both worlds).

  1. HATCH Collection, faux-leather leggings: $158 // 2. Old Navy, maternity long and lean crew neck tee: $26.95 // 3. CURRENT/ELLIOTT, the infantry jacket: $268 // 4. VANS, old skool skate shoes: $65 // 5. Manu Atelier, mini leather trimmed suede backpack: $520 // 6. Westward Leaning, flower 1 sunglasses: $275.

3. GOING OUT

Heading out for dinner with friends? A Baby Shower? Rehearsal Dinner? Meet your new favorite outfit. Pair your leggings with a fitted black tank and top the look off with a flow-y kimono-inspired jacket (it will also look great over your go-to maternity LBD). An on-trend wrap choker adds a bit of sex appeal and will highlight your neck (one of an expectant mom's still-slim features). Save the sky-high stilettos for another time (when you're not carrying an extra human being!) and opt for an easily walkable pair. We love Sam Edelman's sleek, strappy Patti style. Pair with a luxe bag in a contrasting print, like Clare V's leopard flat clutch.

  1. HATCH Collection, faux-leather leggings: $158 // 2. Roseband, velvet kimono: $128 // 3. H&M, maternity tank top, $9.99 // 4. Sam Edelman, Patti ankle strap sandals: $100 // 5. Fallon, jagged edge crystal and leather choker: $300 // 6. CLARE V, leopard hair flat clutch: $245.