That's the word from Buckingham Palace!
The new babe will be seventh in line to the throne and will be the Queen's 8th great-grandchild. The sex of the new little one was a complete surprise for Megan and Harry who decided they didn't want to know what they were having.
“It was amazing, absolutely incredible,” said Prince Harry in a brief media appearance on Monday. “This little baby is absolutely to die for. So I’m just over the moon.”
Best of luck to the couple and we can't wait to see pictures of their new son!
Read the full baby announcement from Buckingham Palace here!