A HUGE congratulations is in order for The Hills star Lauren Conrad, who has just announced she's pregnant with her second child!

The reality TV star took to Instagram earlier this morning to announce the exciting news with a photo of her growing baby bump, captioned: "It's been hard to keep this one to myself!"

"Very excited to share that our family will be getting a little bigger this year."

This will be baby number two for Lauren and her husband William Tell, who are already parents to one-year-old Liam.

We're so happy for Lauren and William and can't wait to meet their new bub!

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