Lily Allen 'lived in fear' for the first three months of her pregnancy

The 'Not Fair' hitmaker – who is due to give birth to her first child with boyfriend Sam Cooper in February 2011 – admits she was terrified of something going wrong after previously suffering a miscarriage two years ago, when she was dating Chemical Brothers star Ed Simons.

She said: "I came off the pill, and weirdly, a week later it happened. But then it was really difficult – I had complications.

"I had about a week and a half of really heavy bleeding and had to have lots of scans, that's when I had to cancel my gig in Spain. I've been living in fear for the past three months."

The 25-year-old star also admitted she regularly skipped meals, replacing food with alcohol, until she fell in love with 32-year-old Sam last year and transformed her life.

Asked if she had suffered an eating disorder as a teenager, she told the Sunday Telegraph magazine: "Not then, but last year I wasn't eating. I would drink a pint of Guinness as a meal.

"It was only when I got together with Sam in June that that stopped – and that's also when I stopped using twitter because he said, 'This is weird, why are there millions of people in the room with us?' So I cut myself off from everything – and I was so much happier."