Meghan Markle
Meghan Markle is prohibited from having baby showers when she becomes pregnant. Pictured: Markle during a visit with Britain's Prince Harry, Duke of Sussex to the Nelson Mandela Centenary Exhibition, which explores the life and times of Nelson Mandela and marks the centenary of his birth, at Southbank Centre's Queen Elizabeth Hall in south London on July 17, 2018. Getty Images/Arthur Edwards

Meghan Markle is banned from following a popular American tradition when she gets pregnant.

Many are looking forward to the Duke and Duchess of Sussex's baby announcement following their royal wedding in May. However, once Markle gets pregnant, she can't have a baby shower.

According to Bustle, the reason is simple -- Prince Harry and Markle's baby doesn't need any presents. In addition, a royal expert believes that the occasion is unnecessary as the royal can just buy the gifts they will be receiving at that event.

"A lavish baby shower would be seen as highly inappropriate... there's nothing they can't go out and buy themselves," Victoria Arbiter said (via Express), pointing out that the gifts given for the baby must be "respectfully returned."

She also stressed that royals having baby shower could only come with "added pressure that they are clearly very wealthy."

Prince William and Kate Middleton are already parents to three adorable children, 5-year-old Prince George, 3-year-old Princess Charlotte and 3-month-old Prince Louis. According to reports, the Duchess of Cambridge never had baby showers. However, there were rumors that Pippa threw one for her sister in 2013 when Middleton was expecting Prince George.

If Markle would ever hold a baby shower, she might request her guests to donate for the charities they supported, similar to what they did on their wedding. Prince Harry and Markle urged the public to not shower them with wedding gifts but encouraged them to make donations to the seven charities they endorsed.

However, the public still sends the couple tons of wedding presents. In fact, following their big day, there were a lot of boxes and parcels for them at the palace. However, the couple had return those gifts back.

"When gifts are accepted, the consent of the Member of the Royal Family should be contingent upon the enterprise undertaking not to exploit the gift for commercial purposes," the Kensington Palace official rules of receiving freebies stated.

"Gifts offered by private individuals living in the UK not personally known to the Member of the Royal Family should be refused where there are concerns about the propriety or motives of the donor or the gift itself."