Becoming a mom of two wasn’t easy for Princess Beatrice. The Princess of York, 36, wrote an essay for British Vogue on Sunday where she opened up about her daughter Athena’s preterm birth in January.

The British royal said "It took more than a few weeks for the tears of relief to dry" after her daughter's arrival on Jan. 22

The young royal's birth was announced one week after her arrival, with Athena joining the couple's older daughter, three-year-old Sienna and Edoardo's son, eight-year-old Wolfie. Beatrice, 36, has now shared the story of Athena's premature birth with British Vogue Magazine - with Edoardo taking to social media to share his pride.