But in a sign her husband might not have been comfortable about the idea, she said he didn't coach her through "hypnobirthing."
The Duchess of Cambridge told the Happy Mum, Happy Baby podcast about the practice, which could raise some eyebrows in stuffy British circles.
Kate, now 38, has suffered hyperemesis gravidarum, a severe form of morning sickness, during each of her pregnancies.
“I got very bad morning sickness, so I’m not the happiest of pregnant people,” she conceded in the new podcast interview, hosted by author Giovanna Fletcher.
“It was utterly rotten! I was really sick – I wasn’t eating the things I should be eating – but yet, the body was still able to take all the goodness from my body and to grow new life, which I think is fascinating,” Kate said.
“It was through hyperemesis that I really realized the power of the mind over the body because I really had to try everything and everything to try and help me through it,” the royal wife revealed.
Kate said she took to hypnobirthing, which involves various relaxation and self-hypnosis techniques to help relax the body before and during labor and birth. The practice involves music, visualization, positive thinking and words and even prompts from partners to relax the body and control sensations during labor.
“There’s levels of it,” added Kate. She then confided of her prince, 37, “I’m not going to say that William was standing there sort of, chanting sweet nothings at me. He definitely wasn’t! I didn’t even ask him about it, but it was just something I wanted to do for myself.”
“I saw the power of it really, the meditation and the deep breathing and things like that – that they teach you in hypnobirthing – when I was really sick and actually I realized that this was something I could take control of, I suppose, during labor,” she said.
Kate's talk about her birthing experiences comes as she and William are planning to slow down their royal duties from February 17 to 21 to spend time with their kids.
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Kate has said hypnobirthing “was hugely powerful and because it had been so bad during pregnancy. I actually really quite liked labor!"
William's wife said of hypnobirthing, "I know some people do have really, really difficult times, and it’s not for everybody.” Unlike Prince Harry and wife Meghan Markle, who are now free, Kate doesn't want to plug things that the royal family would frown upon!
Kate And William welcomed son Prince George in 2013, daughter Princess Charlotte in 2015, and another son, Prince Louis, in 2018.
The royal mom had all three of her children in the Lindo Wing at St. Mary’s Hospital in London.
Middleton has suffered severe morning sickness during all of her pregnancies
Kate's been accused of looking scary skinny at times. She's slowed down her schedule this week to have fun with William and their children during their half-term school break.