It took six months for the 41-year-old and her partner, AFL player Shaun Hampson, to conceive their first child, so the pair were surprised to learn Gale was pregnant so quickly the second time.
But, she tells the magazine, "About 10 days out from my eight week scan, I just felt in my bones something wasn't right.
"I went into the scan and the obstetrician moved the ultrasound around my belly. At one point he just stopped and said he was sorry but the baby was gone.
"As hard as it is to open up about something so heartbreaking, I've done so in the hope we can all exercise a bit more sensitivity and consideration and awareness when it comes to broaching the subject of pregnancy and conception - and also perhaps giving women a little bit more strength when it comes to dealing with miscarriage and everything that surrounds it."