Lynne Spears's book about raising her famous daughters Britney

and Jamie Lynn

has been put on hold

, the publisher confirms to PEOPLE =D> .
"The book is delayed indefinitely. It's delayed, not cancelled

," says a spokeswoman for Thomas Nelson, which publishes inspirational books and Bibles

.
It had been scheduled for a spring 2008 release and was put on hold last week, says the rep

. On Tuesday, news hit that 16-year-old Jamie Lynn is pregnant

with her boyfriend's child

.
Publishers' Weekly described the book as "Lynne Spears's personal story of raising high-profile children

while coming from a low-profile Louisiana community."
The publisher declined to comment on whether the focus of the book would change in light of the pregnancy announcement

.
"We are standing behind Lynn at this time

and understand that she needs time with her family – we support that," says the spokeswoman

.
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