\"The love I have for my sweetheart husband and our beautiful daughter is boundless,\" the 22-year-old added.

Powell shared the same photo and the 23-year-old wrote that he \"can't wait to be a dad.\"

Irwin first announced she was pregnant on Aug. 11 and the couple, who married March 25, told fans they were expecting a baby girl on Sept. 22.

This will be the pair's first child together, and their \"Baby Wildlife Warrior\" is due in 2021.

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