By Alexandra Whittaker
Updated Oct 16, 2018 @ 10:30 am

Just a few short months after her big sis Kate Middleton welcomed her third child Prince Louis to the world, Pippa Middleton is following suit. People confirmed that on Monday afternoon, Pippa welcomed her first child, a baby boy, with husband James Matthews.

At first, Pippa played coy about the rumors of her pregnancy. It took her six weeks after reports started surfacing that she and James were expanding the family for her to confirm it, and even then, she did so covertly in a column about "Exercising During Pregnancy."

"When I learned the happy news that I was pregnant, I realized I needed to adjust my normal 4-to-5-day-a-week routine and find a way of continuing my exercise safely throughout the three trimesters," she wrote.

WPA Pool/Getty Images

"I’m fanatical about sports and have looked at loads of books and websites on exercise during pregnancy but have been disappointed by the limited technical information on what you can and can’t do," she continued. "I found that particularly so during the riskier first trimester. And this being my first pregnancy, I had so many questions I felt were all unanswered."

Unlike her sister Kate, who famously grappled with the serious morning sickness condition Hyperemesis Gravidarum, Pippa didn't have morning sickness at all.

Clive Brunskill/Getty Images

“I was lucky to pass the 12-week scan without suffering from morning sickness," she said. "That meant I was able to carry on as normal and continue most of my sports with better knowledge and, more importantly, professionals to learn from.”

Looks like Prince Louis has a new little friend to play with.