Grace Dent presents untold stories of 21st century Britain.

After a week-long fling with a girl he met on Tagged, 21 year old Thomas is shocked to hear she is pregnant.

He stands up to the mark, offering support and going with her to the scans, but she suddenly cuts off all communication. She doesn’t return his calls or messages and Thomas can only guess what is going on. Has he done something wrong? Does she just want to do this on her own? The ex- boyfriend has moved back so perhaps the child isn’t actually his?

In October he sees a baby girl being pushed around town. He sees her photos on Facebook. He knows his life will change forever if he is found to be the father, but Thomas can’t cope with not knowing.

He is going to court to force a DNA test to find out one way or another.

Producer: Sarah Bowen