Gwen Stefani says getting pregnant with son Apollo Bowie Flynn Rossdale at age 43 helped inspire her to become a Christian. "I really wanted to have another baby. I really did," Stefani, 56, explained in an interview published on the "Hallow: Prayers and Meditation" YouTube channel on Thursday, March 5. "I couldn't and I was old and [I] started talking about all these things ... it was waking me up." Stefani tied her emerging Christian faith to welcoming her son Apollo in February 2014, just after she'd turned 44.