They’re ready for their happy ending. Blake Shelton and Gwen Stefani went through unimaginable heartbreak when they were told they were pregnant, only to find out they weren’t. But now, they are taking another shot at growing their family by undergoing one final IVF treatment. Check out the video to learn more about their struggle — and their big plans for the future.

Gwen, who is already mom to three little boys with her ex-husband Gavin Rossdale, is desperate to have a baby with her beau of almost two years — even though she knows that their final embryos being used means their odds are slim. “She recognizes this,” an insider tells In Touch exclusively, “and believes that God has a bigger plan for her, and that includes getting pregnant.”

As such, she’s turning to her faith in this time of need. The insider continues, “Gwen has been relying on her faith more than ever.” While nothing in life is ever a guarantee, the 48-year-old remains blindly optimistic that it’ll all work out. The insider exclusively explains, Gwen knows in her heart that this final round of IVF “will be absolutely successful.”

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