Biff Chaplow and Trystan Reese are already adoptive parents to two young children Riley and Hailey, but the couple had always longed for a baby of their own.
Trystan, who is transgender, first managed to conceive in 2016 but they suffered the heartbreak of a miscarriage at six weeks. They had considered waiting up to a year before trying again.
But because of the medical complications of Trystan having to go off testosterone they decided to continue. And the married couple, who live in Portland, Oregon, have confirmed Trystan is due to give birth in the summer.