Royal fans are thrilled that Kate Middleton may be pregnant for the fourth time. There are also speculations that this pregnancy might impact Prince Harry's potential return to London as soon as possible.

According to royal author Nigel Cawthorne, Prince Harry may be called upon to step up and work with the royal family again amid a looming public health crisis with the coronavirus pandemic. If Kate is indeed pregnant with her fourth child, then she will likely experience hyperemesis gravidarum, similar to her three previous pregnancies.

Such a delicate pregnancy may make Kate and her baby too vulnerable in these trying times. Thus, if the Duchess of Cambridge won't be able to perform her royal duties beside her husband, Prince William, then Prince Harry might be asked to come to London so serve as a placeholder for the Duchess of Cambridge.

Cawthorne said in an interview that Prince Harry would be nothing but delighted to help out the royal family. The Duke of Sussex will do anything to protect the Queen and his father, Prince Charles, who is also in the vulnerable sector.

The royal expert also said that Prince William and Harry might not be doing much in the next few weeks as the pandemic remains since social events have been highly discouraged. However, since the monarchy is such an institution supporting many other organizations, then it's operation and influence can't simply come to a halt.

Prince William and Harry may need to carry out other functions for the Crown if Queen Elizabeth and Prince Charles are under isolation. They may be asked to attend meetings or sign documents on behalf of the Queen as the direct lines to the throne.

Meanwhile, Kate's fourth pregnancy rumors sparked during her recent trip to Ireland in the first week of March. She and Prince William were given a pint of Guinness, the Irish's world-famous beer but royal fans noticed that the duchess didn't even touch her drink.

According to New Idea, royal fans also noticed that Kate often unconsciously places her hand in her belly. She also appeared to have gained a few pounds and a baby bump and may be on her way to her second trimester.

Some were as bold to predict that the Duchess of Cambridge might give birth to baby number four in August. Apparently, Prince William and Kate learned of this happy news in February. However, there has been no official pregnancy confirmation from Buckingham Palace as of press time.