She and her husband Brian Ormond welcomed their third son into the world last year, joining their other two sons, Ollie, eight, and Louis, five.
Pippa took to Instagram today to post some stunning images from the Christening that took place over the weekend, which you can see below.
She ate with family and friends lunch The Shelbourne, wearing a lovely white dress adorned with flowers.
The first picture she posted was of herself, her husband and their three boys followed then buy only a picture of her and Brian with their newborn Billy.
She then uploaded more photos of her family in the chapel during the Christening and one nice family photo outside the church with Brian’s ex-girlfriend Chloe.
“Love is all you need, Billy bear,” Pippa wrote in the caption of these adorable photographs.
“The most lovely Christening day for our baby boy we are beyond blessed.”
“It was the most beautiful Christening day for our newborn son, and we are beyond grateful.”
Brian Dowling, a Big Brother contestant and close friend of Pippa’s, replied, stating, “I’m still recovering.”
“Beautiful family photographs,” Loraine Barry, a judge on Dancing With The Stars, commented.
Helena wrote the following: “It’s just stunning. Congratulations. It’s a special day.”
While Issac also shared his thoughts, saying: “I sincerely hope you had a good day. Stunning photographs.”
This follows Pippa’s previous declaration that her trip to Dubai was “unforgettable” and that she was “grateful for every moment” she spent there.
The joyful family was on a lavish trip to Dubai, which she had been sharing with her fans.
She posted a lovely photo of her family on Instagram as they were winding up their trip.
They appeared to be on the top of the Jumeirah Beach Hotel, with a view of the sea in the photograph she uploaded.
Pippa wore a stunning green dress with white and yellow runners, while her husband wore black pants and a white top.
“What an unforgettable trip with my gang, appreciative for every moment @brianormondtv #dubai,” the mother of three said in the caption of the sweet photo.