"The Duke and Duchess look forward to sharing the exciting news with everyone once they have had an opportunity to celebrate privately as a new family".
There's also much speculation around where Markle will give birth.
He exchanged rings with his wife at the altar, which the other male members of the royal family chose not to do.
The couple today announced that they are to keep the details about the arrangements for the birth of their baby private.
It's a historic image that will instantly be beamed around the world; the first picture of the Duke and Duchess of Sussex and their newborn baby.
"My personal decision is to not to feed into negativity and be more cause-driven, action-based", she was quoted as saying.
Royal commenter Victoria Arbiter spoke to Entertainment Tonight, and she has a theory on why Meghan decided making a post-birth appearance isn't for her.
Now it has been revealed the former actress wants to shake up her birthing method as well.
The Queen's daughter Princess Anne and Mark Phillips kicked off the custom in 1981 when they introduced baby Zara Phillips on the steps outside the Lindo Wing of St Mary's Hospital, London.
But the main barrage of Twitter users appeared to back the panel's views, and agreed the couple owed the public at least some information following the birth.