Brooke Shields' new memoir, "Brooke Shields Is Not Allowed To Get Old," is out now, and the 59-year-old model and author shares it all, opening up about her first marriage to tennis pro - Andre Agassi.

Taylor Hill/Getty Images Brooke Shields never had a baby with her ex-husband, Andre Agassi - a decision she says turned out to be a blessing in disguise. "I'm glad I never got pregnant with my first husband because it would have been a disaster,

Brooke Shields writes in her memoir, 'Brooke Shields Is Not Allowed to Get Old,' that she's "glad" she never had kids with Andre Agassi. Read why, here.