Tomorrow's Rainbow (Heartsong Presents)

is book #214 of the Heartsong Presents line.
==Book Description==
Perri has four growing boys who need a father -- and, Lord knows, she needs a husband. But Perri knows that Mitch won't be able to handle the chaos of living in such a bustling household. To Mitch, such a sacrifice would grow old faster than her boys! — But there's a bigger reason why Perri can't marry Mitch: He doesn't love the Lord the way she does. Mitch has never given his life to Christ as his Lord and Savior.
Perri know she's in love with Mitch. But God comes first in her life, even when the darkest storms are on the horizon -- and no promise of tomorrow's rainbow.
(Description from paperbackswap.com)