Gaynor Offland, 35, suffers from a life-threatening condition that causes clots to form in her body. When doctors discovered pregnancy was the trigger, they advised her not to get pregnant due to the risks to her life and her unborn baby.

But Gaynor, from Telford, refused to give up on her dream.

Now, thanks to treatment, she is a mother at last.

Oliver, who has been hailed as a miracle by doctors, was born on October 2, weighing in at a healthy 6lb 15oz.

Gaynor said: “It’s still not sunk in yet. I can’t take my eyes off him. It took a long time to have him. It’s been a roller coaster but it was all worth it. I feel complete.”

Gaynor suffered the heartbreak of losing three babies, including twin girls at 24 weeks.

Doctors at the Royal Shrewsbury Hospital put her first miscarriage down to pre-eclampsia, which has almost identical symptoms.

But after she lost her daughters in 2006, doctors decided to run tests.

The results were sent to a specialist in London and Gaynor was diagnosed with an extremely rare condition called Congenital Thrombotic Thrombocytopenia Pupura, which causes clots to form in her body because of a missing enzyme in her plasma. It can lead to organ failure and even death.

The clots can also block the blood flow to the placenta, cutting off the baby’s oxygen supply.

Teaching assistant Gaynor and her partner Alan Griffiths, 55, were stunned when they were told the condition was triggered by pregnancy.

Gaynor said: “It was a total shock. We didn’t know what the condition was or where it came from. No one in my family has ever had a problem.

Doctors advised me not to get pregnant but I was determined. My life wasn’t going to be complete without a baby.”