Happy birthday, Aubree Lind!

To celebrate her daughter's big day, Chelsea Houska took to Instagram to share an adorable photo of little Aubs just before going to school — and the caption is just as cute as Aubree's glasses!

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The Teen Mom 2 star captioned the shot, "Happy Birthday to my sweet girl! I cannot believe how fast the last 7 years have gone! So much love."

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Happy Birthday to my sweet girl! I cannot believe how fast the last 7 years have gone! ❤️❤️❤️ so much love.

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A post shared by Chelsea DeBoer (@chelseahouska) on

The reality star has had a lot to celebrate this summer. Chelsea announced her second pregnancy with fiancé Cole DeBoer in July; she shares Aubree with ex Adam Lind. The mother-of-one frequently documents her pregnancy for fans, in addition to giving adorable sonogram updates.

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