The family of an influencer who was pregnant with her fifth child when she died suddenly just days before Christmas have revealed the cause of her death.

Emily Mitchell, who ran The Hidden Way blog, suddenly lost consciousness as the couple were having breakfast on December 22.

He realised she had become "unresponsive" and called emergency services, who later pronounced the 36-year-old dead.

The couple, who had five children together, shared their life online, and Emily’s fans were left shocked at the news.

Until now, it was unclear as to what caused Emily, and her unborn child’s death, but the family have since had confirmation from their state Medical Examiners Office.

The couple said they were delighted to welcome their new child in November

In a statement, the family said Emily’s official cause of death was a "pulmonary embolism."

A pulmonary embolism is a blockage in one of the pulmonary arteries in your lungs and caused by blood clots that travel to the lungs from deep veins.

Her family said it is "challenging" to wrap their heads around "how this could have happened" but added that "we are certain that it was simply her time; the Lord was calling her home."

Emily leaves behind her four children

The statement read: "A few days ago we learned from the state Medical Examiners Office that the official cause of death was a pulmonary embolism.

"Although it is challenging to wrap our heads around how this could have happened, we know all first responders and medical personnel did everything they could to help, and therefore we are certain that it was simply her time; the Lord was calling her home."

In an Instagram post, Emily told followers on her blog she was expecting her fifth child in November.

Her family said it is "challenging" to wrap their heads around "how this could have happened"

Posting a picture with her husband and a photo of a sonogram, the couple said they were delighted to welcome their new child.

She also wrote a post reminding her followers that all births are an equal achievement and said she had scheduled a C-section for the birth.

Emily wrote: "You are no less a mother if you needed emergency medical intervention, had a planned C-section, or an epidural.

"You aren’t a ‘better’ mother if you had a home birth or an unmedicated vaginal birth."