Pregnant model wearing a blue gingham wedding guest dress
Sleeper

If you're going to be pregnant while attending a wedding, choosing a wedding guest outfit that's practical and comfortable doesn't mean you have to sacrifice on style. You'll find lots of high street brands such as H&M and New Look have whole collections dedicated to maternity wear that mean you don't have to feel like you're wearing a sack all day. 

Since heading to the shops to search through rails probably isn't on your agenda, our round-up of the best maternity wedding dresses for 2021 might be just what you need. From bump-friendly frocks to figure-hugging gowns, we've got styles to suit all kinds of mums-to-be. We've even included non-maternity options too that you can totally wear when you're expecting and for seasons to come. 

1. Maternity Floral Tiered Midi Dress - £25.99, New Look

Pregnant model wearing a bright floral midi wedding guest dress

A bright, floral patterned dress lends itself perfectly to a wedding guest dress. This pick from New Look's maternity range is loose enough to be bump-friendly but will still ensure a flattering finish. 

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2. Maternity Black Animal Print Midi Wrap Dress  - £25.99, New Look

Pregnant model wearing a black animal print dress

Another gorgeous option from New Look is this animal print beauty. The wrap style cuts just under the bust providing a comfortable fit for any sized bump. 

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3. Pleated Maternity & Nursing Dress  - £45, JoJo Mama Bebe

Pregnant model wearing a floral midi wedding guest dress

JoJo Mama Bebe specialises in maternity wear so you can guarantee you'll feel secure all day long in one of their dresses. We adore the floral pattern on this maternity dress and it even has easy breastfeeding access should you wish to wear it after the baby arrives.  

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4. Floral Print Trapeze Dress  - £149, Whistles

Model wearing a monochrome floral trapeze wedding guest dress

Not only is a trapeze style dress ideal maternity wear as it'll give you lots of room to move, this silhouette is totally on trend too. Consider this gown from Whistles if you're searching for a chic and contemporary look. 

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5. MAMA Puff-Sleeved Dress  - £29.99, H&M

Pregnant model wearing a lilac midi wedding guest dress

If you're not into bold patterns or bright colours, this dress from H&M MAMA might just be the one. Simple yet stylish, it'll be appropriate no matter the theme of the wedding. 

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READ MORE: The 19 Rules All Wedding Guests Need to Follow

6. MAMA V-Neck Dress  - £34.99, H&M

Pregnant model wearing a blue tiered wedding guest dress

Heading to sunnier climes for a destination beach wedding? Staying cool, feeling comfortable and looking fabulous will be top of the list in dress priorities and this dress from H&M MAMA ticks all three. 

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7. Oversized Maxi Dress  - £30, Monki

Model wearing a floral green wedding guest dress

Monki dresses tend to come oversized so they're an excellent option if you want an outfit that'll still look just as stylish for seasons to come. We love this floaty silhouette but it comes in a wrap style too should you want to cinch in above your bump. 

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8. Babydoll Embroidered Dress  - £279, Maje

Model wearing a white and red embroidered wedding guest dress

A babydoll style dress is a fail-safe alternative to maternity specific clothing as they have a lot of slack should your bump get bigger before the wedding. This embroidered option is inspired by Ibiza would look dreamy at a summer or festival themed celebration.

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9. Maternity Animal Print Midi Shirt Dress  - £45, Marks & Spencer

Pregnant model wearing an animal print wedding guest dress

Some weddings call for more formal attire and if that's the case this Marks and Spencer animal print dress is ideal. It has a swishy tiered silhouette making it bump-friendly while the button through style, collar and three quarter length sleeves keep it from looking too casual.  

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10. Maternity Off The Shoulder Wrap Midi Dress  - £25, Boohoo

Pregnant model wearing a lilac wrap midi wedding guest dress

There's nothing more beautiful than a baby bump so don't feel afraid to opt for a more form fitting shape like this Boohoo dress if flouncy silhouettes aren't your style. The midi length will keep you comfortable and the off the shoulder neckline is seriously flattering. 

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11. Atlanta Linen Dress  - $320 (£231), Sleeper

Pregnant model wearing a check wedding guest dress

You've probably seen this cult gingham Sleeper dress all over your Instagram feed and fallen in love with it just like we have. Well, the good news is it's maternity suitable too and makes a gorgeous wedding guest dress if you're expecting. 

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12. Maternity Gingham Puff Sleeve Midi Dress  - £20, Boohoo

Pregnant model wearing a gingham pink wedding guest dress

Boohoo have an affordable alternative in a pretty shade of pink. It's a real winner at only £20, plus Boohoo have frequent sales so if you keep your eye out you can probably get it even cheaper!

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13. Fine Cord Lace Midi Dress - £330, Self-Portrait

Model wearing a blue lace wedding guest dress

If you hadn't guessed by now, puff sleeves are having a major moment and this cornflower blue dress from Self-Portrait showcases this fun trend at its finest. The lace trimmed neckline is universally flattering and the buttoned bodice is romantic and feminine. 

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READ MORE: The 40 Best Wedding Gifts for 2021

14. Floral Print Dress  - £27.99, Zara

Model wearing a floral green wedding guest dress

We love a fun, floral print and this frock from Zara will make a lovely wedding guest dress should you want a relaxed style. The sleeveless design will keep you cool if it's a summer wedding, plus the braided belt is adjustable to accommodate bumps of all sizes.  

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15. MAMA Smocked Dress  - £24.99, H&M

Pregnant model wearing a pale green ruched wedding guest dress

Show off your beautiful bump with this sage green smocked dress from H&M MAMA. Made from stretchy material and featuring elasticated ruching, it'll fit you as your bump continues to grow.

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16. Darla Dress  - £285, Reformation

Model wearing a blue maxi wedding guest dress

Reformation never fail to impress with their collection of flattering and trend-led pieces. We love the Darla Dress thanks to its cornflower blue hue and pretty bow detailing. Again, it features ruching making it ideal for maternity wear. 

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17. Portia Dress  - £149, Ghost

Model wearing a red floral wedding guest dress

The Portia Dress from Ghost is perfect for autumn or winter celebrations, not only because of its weather appropriate long sleeves, but thanks to the stunning colourway too. It's crafted from a seriously soft fabric that will keep you warm and comfortable. 

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18. Anisha Dress  - £95, Ghost

Model wearing a pink collared wedding guest dress

If you love vintage florals, you'll love the Anisha Dress from Ghost. Ensuring a looser fit, the ruffled high neckline is the star of the show making this frock a real showstopper. We bet you'll be receiving tons of compliments!

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19. Maternity Maxi Dress  - £42, Pieces

Pregnant model wearing a neutral maxi wedding guest dress

The two words that come to mind with this maternity dress from trendy brand Pieces are chic and contemporary. Style with gold jewellery and and sandals for a stunning summer wedding look. 

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20. Asymmetric Belted Silk Twill Dress  - £750, Louisa Parris

Model wearing a geometric pattern wedding guest dress

Fashion-forward shoppers will adore this geometric silk trill dress by Louisa Parris. It might be more expensive that a high-street gown but the fabric is so luxurious and it'll last in your wardrobe for a lifetime. 

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READ MORE: 33 Best Summer Wedding Guest Dresses 

21. Maternity Strappy Green Ditsy Maxi Dress  - £35, Dorothy Perkins

Pregnant model wearing a green floral wedding guest dress

It's hard to go wrong with a simple floral strappy dress and this one from Dorothy Perkins will be a staple in your wardrobe during pregnancy even after the wedding. Pair with white accessories like this model has done for a fresh look. 

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22. Mlkolette 2-in-1 Maternity Dress  - £35, Mamalicious 

Pregnant model wearing a mustard wedding guest dress

Mamalicious make great quality maternity wear at an amazing price and this 2-in-1 mustard dress might just be your new go-to outfit. The plunge neck and tie waist detail is incredibly flattering, plus the wrap effect bust means it's suitable for nursing. 

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23. Mlzorina Maternity Dress  - £40, Mamalicious 

Pregnant model wearing a blue wedding guest dress

Designed to fit through all stages of pregnancy, the drape details on this dress from Mamalicious are giving us Grecian vibes. We love the delicate front but, if you look on the back, it has a pretty lace insert which makes it even more special. 

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24. Floral Halter-Neck Maxi Dress  - £482.44, LoveShackFancy

Model wearing a floral halter-neck wedding guest dress

The halter-neck dress has definitely cemented itself as a style staple this season and we bet it's here to stay. This pastel, floral print beauty by LoveShackFancy is floaty, fabulous and will look fantastic if you go for a dance at the reception. 

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25. Maternity Nursing Layered Maxi Dress  - £24.99, Happy Mama

Pregnant model wearing a long sleeved purple wedding guest dress

A deep plum shade frock is a lovely option for a wedding guest dress and one that you might not have thought of. We're obsessed with the style and simplicity of this design from Happy Mama.

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26. Maternity Nursing Tied Dress  - £23.99, Happy Mama

Pregnant model wearing a mini pink wedding guest dress

Although a shorter style is a little more risky than a longer length in case your bump grows before the wedding, it's still a lovely option. Available in blush pink, mint or yellow, this dress from Happy Mama is gorgeous.

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27. Cassia Patchwork Wrap Dress  - £875, Zimmerman

Model wearing a patchwork wedding guest dress

Unmistakably Zimmerman and undeniably stunning, we're head over heels with this unique patchwork number. If you look closely you'll see a few jungle animals hidden amongst the blooms which is a fun feature. 

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28. Maternity Pink Dobby Maxi Dress  - £25, Pretty Little Thing 

Pregnant model wearing a pink maxi wedding guest dress

Just because a dress is maternity wear doesn't mean it can't be a little sexy and the high split design on this Pretty Little Thing dress oozes glamour. We adore the textured dobby material and the maxi length that adds sophistication. 

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29. Maternity Olive Satin Midi Skirt  - £12, Pretty Little Thing 

Pregnant model wearing a green skirt and bodysuit

Okay, so this isn't technically a dress but we love the versatility of this maternity satin skirt from Pretty Little Thing. You can pair it with whatever top makes you feel comfortable but we love how this model has opted for a body con vest in a similar green hue. 

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30. Totem Gathered Maxi Dress  - £180, Deiji Studios

Model wearing a green wedding guest dress

This olive green dress by Deiji Studios will be perfect if you're attending a rustic style wedding. Whether you choose to wear it belted under the bust or loose fitting, it has an ethereal elegance to it that will guarantee style points. 

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READ NOW: 45 Best Winter Wedding Guest Dresses on the High Street

31. Puff Sleeve Maxi Wrap Dress  - £95, & Other Stories

Model wearing a blue wedding guest dress

The self tie detail at the side of this duck egg blue dress is totally bump-friendly despite being from a non-maternity collection at & Other Stories. We're predicting a sell-out so you might want to get your hands on it quick!

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32. Belted Floral Print Midi Dress  - £95, & Other Stories

Model wearing a patterned wedding guest dress

We also adore the unusual bold print and pleated skirt on this dress from & Other Stories. Pair with minimalist jewellery and barely-there shoes for a sophisticated and elegant look. 

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Now you've got the wedding guest dress sorted, what about finding the perfect gift for the happy couple? If they're eco-conscious (or even if they're not!), you're bound to find loads of ideas in our sustainable wedding gift guide.