Marianne Johnston, 20, from Faifley, Clydebank, caught the virus days after the birth of her second child on October 27 and died on November 29.

She leaves behind baby Leon, one-year-old son Jay and devastated partner William Laird, 21.

Officials linked her death to “underlying health problems” but her family said the only factors involved were the stresses of childbirth.

Her mother Christine, 53, said: “The message I really want to get out there is for any pregnant women to go and get the swine flu jab.”

Just days after the birth Marianne and her baby went home, but on November 2 she had difficulty breathing and a doctor sent her to the accident and emergency department of Glasgow’s Western Infirmary.

She was moved to heart and lung specialists at the Royal Brompton Hospital in London on November 13, but developed deep vein thrombosis and suffered bleeding on the brain before passing away.

Her mother said: “Marianne just loved being a mum.

“She phoned me and said the doctor wanted to send her to A&E and could I come and get the baby. After I did that, went to the hospital. She was wearing an oxygen mask but she was able to smile at me.”

While her mother looked after the children, Marianne’s sister Kirsty, 29, stayed at her bedside.

Her brother John, 27, said: “On the Tuesday that Leon was born, we were up at the hospital with her taking photographs and holding the baby and everything.

“Then the next Tuesday we were in intensive care being told by the doctor that she was really ill and might not pull through.”

Marianne’s funeral was held at Clydebank Crematorium on Tuesday. More than 400 people attended.