Princess Beatrice is still on her honeymoon phase with husband Edo Mapelli Mozzi after their July scaled-down wedding at Windsor Castle. But, Edo's favorite new book is giving rise to speculations that the York royal could be expecting her first baby.

According to Daily Express, Princess Beatrice's husband has been so hooked on learning about the parenting techniques from the book, How To Raise Successful People. Apparently, Edo can't stop talking about the ideas laid out by the author Esther Wojcicki.

Edo learned the five most important tenets to keep in mind when educating and raising children to be successful as adults: trust, respect, independence, collaboration and kindness. He said that the author has three highly successful daughters -- a CEO at YouTube, a CEO at 23andMe, and an expert in the field of epidemiology and anthropology.

But, Edo and Princess Beatrice are also raising together his four-year-old son, Wolfie, from a previous relationship. The boy divides his time between his father and stepmother, and his own mother, Dara Huang, who is also in a relationship.

Edo and Princess Beatrice have yet to comment on these pregnancy rumors. Hence, everything should be taken with a grain of salt until everything is proven true and correct.

Meanwhile, according to royal expert Camilla Tominey, Beatrice and Edo have filled their house with photos of themselves with Wolfie. The York royal also instigated a good relationship with the boy's mother so that Wolfie can feel only nothing but love and acceptance from his family.

Beatrice and Edo also do their part to take Wolfie on school runs or pick him up after classes, where he is in nursery. Sources close to the couple said that the princess loves to talk about his stepson all the time and she has warmly embraced him from the beginning.

Princess Beatrice's pregnancy rumors come as her sister, Princess Eugenie, confirmed nearly a month ago that she is going to be a new mom much in early 2021. Eugenie and Jack Brooksbank, who were married in 2018, are expecting their first child together.

However, Princess Beatrice and Eugenie might not likely have a baby shower because of the COVID-19 restrictions. According to reports, families living in two households cannot converge as the U.K. is currently on tier 2 lockdown.

Princess Beatrice and Edo are staying at St. James's Palace while Eugenie and Jack live in Kensington Palace. The new restriction also means that the Duke and Duchess of York, Prince Andrew and Sarah Ferguson, will not be able to see through Eugenie's last trimester of pregnancy in person unless there will be changes in the next few months.