The 26-year-old singer, who married drummer Chris Tyrell in January 2012, had revealed her pregnancy on social networking site in December, reported Us magazine.
"Chris and I are excited to announce that our Christmas gift has arrived a little early this year! We are having a baby! We feel so blessed," she had said.
Since announcing her pregnancy, Scott has been sharing updates with her fans.
"Who has two thumbs and just asked her husband, and very nicely I might add, to run into the grocery store for pop tarts? ME! Pregnancy," she said.