Hilary Duff documented the home birth of her youngest daughter, Mae James Bair, in a series of very moving photos.

Taking to Instagram, Hilary shared eight powerful candid photos taken moments before her now-four-month-old daughter was one was born on March 24.

She captioned the post: "Feeling ready to share some photos of Mae Mae’s birth day!!! For me to feel safe during birth and get to where I need to go, it’s crucial to have the right support system."

Revealing that she had a doula, the pop star opened up about up how those around her at the time of her daughter's birth helped her keep calm.

Hilary added: "The perfect amount of space, counter-pressure, humor, stillness, and people that support my power. My hubby is the most calm anchor in the room when I feel like climbing the walls and my little Molly is an extraordinary doula who sat with me when I needed to be still and quiet."

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The singer and actress went on to say: "She quite enjoyed the fact that I was sitting on doggy puddle pads as my water had broken hours before. My own mama was there to make all the snacks and watch with a big nervous smile as her baby brings her a new grandbaby earthside.

"The help that I have to support my other children while I am not able is maybe the most comforting thought of all. All hands on deck. Forever lol. This is hard work…every way a woman brings a baby in is.

In a tribute to all mothers, she continued: "From getting pregnant to c-sections, hospital or home births, the breastfeeding journey (oy vey that one gets me every time) and raising these little beings responsibly to be stand up, [confident], kind citizens of the world.

"It’s completely consuming. A tedious, magical, miraculous adventure…So cheers almighty mothers. You make mountains move daily."

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Earlier this year, just days after the 'So Yesterday' singer gave birth to Mae - the second child she shares with her husband Matthew Koma - Hilary took to Instagram to share with her 17.7 million followers a beautiful black and white photo of her cradling her little one while still in the birthing pool.

Hilary's two-year-old daughter Banks, the 33-year-old mom's first child with Matthew, is also seen in the pool.

Matthew, who is also 33, and nine-year-old Luca - Hilary's first child whom she shares with ex-husband Mike Comrie - look on as the doting mom-of-three holds her newborn.

Featured image credit: Pictorial Press Ltd / Alamy

Hilary Duff documents home birth of baby girl with series of striking photos