Desiree Hartsock is definitely excited to be a mom!

The Bachelorette alum is expecting her first child with husband Chris Siegfried — and just weeks before her due date she bared her baby bump on Instagram!

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With a happy face made with stretch mark cream covering her growing belly, the brunette beauty glows in the impromptu selfie.

Desiree, 30, announced she was expecting a baby boy in August.

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"Our hearts are so full of love for our little man already and we can't thank you all enough for the extra love you've shared during this special time," she wrote.

For more celebs proudly baring their baby bumps, check out the gallery below!