Taking to Instagram, Millie shared a selfie, almost a year on from welcoming baby Sienna.
"Looking back at my postpartum journey, everyday I am in awe of what my body has done and continues to do, to support me and my baby," she explained.
"I admire how quickly it recovered from growing a human and evolved to support and cherish the needs of my darling Sienna. Parts of my body may not quite sit how they used to before but, I am learning to love the changes, the marks and the scars, because they remind me of the amazing miracle that occurred."
Millie, 31, went on to explain that her relationship with her body has had its up and downs.
"My relationship with my body during my pregnancy and postpartum journey has had its ups and downs. For a while after I gave birth I found it really hard to love my body again and it often felt like I was trying to love a stranger, I just didn't recognise myself and it was a shock," Millie admitted.
"I went from being pregnant and loving my pregnancy curves, to wanting to cover up and hide my body, hating how nothing fit me. I want to be raw and honest as I think it's important for women to share more about their postpartum journeys and know that it's ok, to not always feel ok!"
The former Made In Chelsea star explained she started to incorporate regular exercise and a balanced diet into her routine, explaining she took everything in moderation.
"I've learnt not to punish myself, not to compare my journey to others and by doing that I am now in a good place. I feel strong, I love my body and I am proud of what we have both achieved."
And followers were quick to praise Millie, with one writing: "Great post, I'm currently 34 weeks pregnant and really struggling with my changing body, really panicking about birth etc so reading your story has helped.
While another added: "You look incredible. Well done for not pushing yourself and doing it gently. You've enjoyed your time properly with your baby and prioritised very well. Thank you for sharing your journey so other mums know it's ok to not snap back straight away."
Last year, Millie opened up about her post baby body when Sienna was 10 weeks old.
In a candid post, Millie said that while she didn't feel "totally happy and at one" with her post pregnancy body, she had "no intention of rushing" to get her old body back.
However, she said this acceptance had been made harder by "overly strong and hurtful comments" from online trolls.
She said: "Fitting into my pre-pregnancy clothes seems a long way off and I have no intention of rushing into 'getting my body back' but it would be a lie if I said I feel totally happy and at one with my body post pregnancy.
"The process has been made a lot harder by some overly strong and hurtful comments online about my appearance (as much as you try and ignore them). I'm in awe of what my body has achieved over the last year but I find it hard not seeing the girl I know to be me looking back at me in the mirror."
We think Millie looks incredible!
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