"We are growing another pickle. We’ve never felt so grateful... I have no words. We didn’t think we would get the chance. We love you all to the moon and back. Lots of love From Me, Joe, Harry, Zach, Leighton, Rex, and our little pickle"., the Loose Women star wrote.
The former X Factor contestant that she and her fiancé Joe Swash had been trying for another baby "a really long time". The couple have a son together, named Rex.
Solomon has two children from a previous relationship, while Swash has a son.
"We decided we were so lucky already to have our boys", she added.
She also said that she was grateful to "to hear an extra heartbeat", following her check up.
Solomon and Swash had said that their wedding is currently on hold while they are trying to get a licence to tie the knot in their back garden of their home in Essex.