Congratulations to the new family of four: Meghan Markle and Prince Harry are officially expecting their second child. The already-adored baby will be an older sibling to Archie, who will turn two

in May. The couple announced the news with a sweet photo taken by Meghan's friend Misan Harriman, who explained on Instagram that it was captured remotely on an iPad. 

So what does the announcement have to do with the late Princess Diana? As eagle-eyed outlets like People explained, Princess Diana announced she was expecting her second child (Prince Harry) this exact same week 37 years ago. It was announced on February 13, 1984, that she and Prince Charles were adding to their family. Coincidence? Well, the couple is known for paying tribute to his late mother in subtle ways, such as planting her favorite flowers during a charity event, so I wouldn't put it past them. Scroll down to see their cute baby announcement.