According to maths, science and the royal calendar, Prince Charles might not be in the UK for the birth of his son's third child.
The Queen's eldest will be in Australia with his wife Duchess Camilla from the 4th April, where they'll go on a six-day tour for the Commonwealth Games.
The Duke and Duchess of Cornwall will kick off their adventure Down Under in Brisbane.
The pair will be at the opening of the XX1 Commonwealth Games on the Gold Coast, on behalf of Her Majesty.
For the remainder of the time, they'll check out the delights Queensland and the Northern Territory have to offer - before returning home on April 10.
Meanwhile, Kensington Palace have confirmed that Duchess Catherine and Prince William are expected to welcome their third child anytime in April.
No doubt Prince Charles will pick up many delights for the newest member of his family plus goodies for his grandkids Prince George and Princess Charlotte.
Speaking about his love for being a grandfather, he shared, "It's a different part of your life."
"The great thing is to encourage them. Show them things to take their interest. My grandmother did that, she was wonderful."
Adding, "It is very important to create a bond when they are very young."
Last year, he told one royal fan that he adores reading Harry Potter to his little ones.
No word on whether the new baby Cambrige will be a boy or a girl, but excited dad Prince William did put to rest the chatter that his wife will be giving birth to twins.
"Twins? I think my mental health would be tested with twins," he recently said, before adding, "Our third child is due in April, I'm getting as much sleep as I can."