Megan Fox has "learned all the tricks" of pregnancy now that she is expecting baby number four

She told People: "With this being child number four, I already have learned all the tricks to make my body feel well physically and mentally. I am sleeping and exercising and sticking to my healthy diet and lifestyle, as always."

The 'Transformers' star previously revealed that all of her children are "super excited" to have a new sibling and that she will have the support of her family throughout.

She said: The kids are all super excited for another addition to the family and have promised to help out and pitch in."

MGK also has 15-year-old daughter Casie from his time with ex Emma Cannon.

Last month, Megan confirmed via social media that she and the 'Bloody Valentine' hitmaker are having a baby together.

Alongside a photo of her naked body covered in black paint to reveal her blossoming baby bump and a snap of her positive pregnancy test, Megan wrote on Instagram: "nothing is ever really lost. welcome back [baby and heart emojis] (sic)"

The 'Jennifer's Body' actress previously opened up about her experience of suffering a miscarriage, admitting that she didn't know how to cope with the tragedy.

During an appearance on 'Good Morning America', she explained: "I've never been through anything like that in my life.

"I have three kids, so it was very difficult for both of us and it sent us on a very wild journey together and separately ... trying to navigate, 'What does this mean?' and 'Why did this happen?'"