black maternity dresses BUMPSUIT Maxi Dress Thigh High Slit, Women Long Sleeve Soft Stretchable Fabric Turtleneck Bodycon Pregnancy Dress with Back Zipper for Baby Shower at Amazon Women's Clothing store Maternity/nursing Relaxed fit Easy Lioness Women's Heart-Shaped Maxi zzz__size-width_10-Wide Color:Brown, Bronze

black maternity dresses BUMPSUIT Maxi Dress Thigh High Slit, Women Long Sleeve Soft Stretchable Fabric Turtleneck Bodycon Pregnancy Dress with Back Zipper for Baby Shower at Amazon Women's Clothing store Maternity/nursing Relaxed fit Easy Lioness Women's Heart-Shaped Maxi zzz__size-width_10-Wide Color:Brown, Bronze

Lioness Women's Heart-Shaped Maxi Dress - Deep Wheat - size M

$178.00 Crew-neck long sleeve dress with structured fitted top and a-line skirt

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Color:Brown, Bronze

So, this can be a good option if you're going to multiple events per month, but may not work if you just need a one-off formal dress

Maternity/nursing Relaxed fit Easy nursing zipper opening V neckline Short sleeve Drawstring waist Soft cotton breathable fabric Fabric