Nadine Coyle has confirmed her on/off boyfriend Jason Bell is her baby's father.

The Girls Aloud singer announced she was expecting her first child over Instagram in August and was initially confused by the media speculation over the paternity of her offspring.

The Irish star has now put the rumours to rest by revealing she has secretly got back together with American football player Jason, who she dated from January 2008 until March 2011.

She told Britain's HELLO! magazine: ''I think we just forgot to tell everyone we were together. When I said I was pregnant I thought, 'Why's everyone wondering who it is? Then I remembered, 'Oh yes, that's right. I do stuff on TV and people are confused. So this clears it up!''

Nadine is surprised to be the first member of British band Girls Aloud to become a mother - ahead of Cheryl Cole, Kimberley Walsh, Nicola Roberts and Sarah Harding - but is very happy about the turn her life has taken.

She said: ''I think I was the least likely to be the first to have a baby, it would always come up. A couple of the other girls had wanted babies for a long time but I said no way ... It was definitely a shock, but I was really, really happy.''

The 'Something New' hitmaker can't wait to start a family with Jason and has never been so excited in her life.

Nadine gushed: ''I've never felt excitement like this in my whole life. Knowing we're having a baby takes it to another level.''