In December 2016, the Queen's granddaughter revealed that a pregnancy announced the previous month had ended in a miscarriage.
Now she has told The Sunday Times Magazine that she suffered another miscarriage 'really early on' before becoming pregnant with her daughter, Lena, who was born in June.
"I think you need to go through a period where you don’t talk about it because it's too raw," she said in the joint interview alongside her brother, Peter Phillips. "But, as with everything, time's a great healer."
Zara, 37, and her husband Mike welcomed their first child, Mia, in 2014. The equestrian explained that she found it difficult to tell people about losing her unborn baby after Mia's birth, particularly as she is in the public eye.
"We had to tell everyone and it’s like, everyone knows—that's the hardest bit," she said. "That's why I think a lot of people don’t talk about it because [a miscarriage] can happen early enough or it’s only your group of friends and your family that know."
She described her first miscarriage as "nature going 'this one's not right,' which your body does a lot, I think." She said she had to go into labour "because it was so far along. You have to for your body, to get your body back."
After the news of Zara's first miscarriage was announced, the Tindalls were inundated with supportive letters from other couples who told them "we've been through it." Speaking about the response from her family, Zara added that Mike was "very concerned and very supportive" during the difficult time.
She said: "It's hard for the guys, it's a different feeling of loss, isn't it? That's a time when your family comes to the fore, that's when you need them."
Zara and Mike's second daughter was born in Stroud, Gloucestershire, on 18 June. The proud parents announced her name nine days later in a statement that read: "Zara and Mike Tindall have named their baby daughter Lena Elizabeth."
Following speculation on Twitter, Mike has since confirmed how to say Lena. "Pronounced like Lay-na," he tweeted after the birth.