The Britain's Got Talent judge confirmed the news on Twitter, saying that she is expecting a baby boy with husband Chris Hughes.
She wrote: "Just to let you know. I am 6 months pregnant with a baby boy!! Have had to keep it quiet until now! I'm still doing BGT and Shrek The Musical!!!"
Speaking of the news, her former Britain's Got Talent co-star Piers Morgan said: "OK - Amanda Holden's pregnant. She's 6 months pregnant too - how the hell did someone so indiscreet keep that a secret so long? Very excited for her and Chris."
The couple already have one child together, 4-year-old Lexi.
