Arnold Schwarzenegger and Maria Shriver’s marriage is officially over, 10 years after she first filed for divorce.

Katherine Schwarzenegger can't wait to see Chris Pratt shine even more as a father. The author, who is currently expecting her first child with Pratt, took to Instagram on Sunday to wish him a happy birthday and Father's Day. "Happy birthday and Fathers Day to my wonderful, loving, exceptional husband," Katherine began her sweet note. "I wish you all the joy and happiness in the world on your birthday and every day. RELATED CONTENT:Katherine Schwarzenegger Talks Pregnancy for the First TimeChris Pratt and Katherine Schwarzenegger's Baby Due 'Soon'Katherine Schwarzenegger Shows Off Baby Bump While Strolling in L.A.

Katherine Schwarzenegger feels so lucky to have her husband, Chris Pratt, and family close to her during her first pregnancy. I'm really lucky to be living in very close proximity to my family, which has been very helpful," Schwarzenegger said with a smile. "I'm really looking forward to playing around with whatever it is, she or he is, and have some fun. RELATED CONTENT:Chris Pratt and Katherine Schwarzenegger's Baby Due 'Soon'Katherine Schwarzenegger Shows Off Baby Bump While Strolling in L.A. Pregnant Katherine Schwarzenegger Says Maria Shriver 'Made Me Want to Be a Mama'

Chris Pratt and Katherine Schwarzenegger are getting ready for their new addition. The couple is celebrating their first wedding anniversary on Monday as they prepare to welcome their first child together. The couple plans to celebrate their first wedding anniversary today with something small as their baby is set to arrive soon." Though this is Schwarzenegger's first child, Pratt already shares son Jack, 7, with his ex-wife, Anna Faris. Chris Pratt and Katherine Schwarzenegger Expecting First Child Together