RELATED: Olympic skier Bode Miller's wife opens up about daughter's death
The couple welcomed a baby boy Friday.
Morgan took to Instagram over the summer to share the family's heartbreak.
She wrote, "We are beyond devastated. Our baby girl, Emmy, passed away yesterday. Never in a million years did we think we would ever experience pain like this."
The couple turned their pain into a personal mission to promote water safety. The two have spoken to several media outlets trying to educate families about pool drownings.
Bode and Morgan also have a 3-year-old son and two other children from previous relationships.