It was on TV a few years ago but looked like a film from the 80s.. A woman has a baby in hospital but a woman posing as a nurse steals the baby and the mother gets told her baby has died.. She fights to see the body but it has been signed by a person the hospital does not know and its gone away (cant remember if its been put in furnace) anyway the mum doesn't give up as she just knows her baby is not dead and people think she is having a breakdown and don't listen to her.. Never saw the last hour so don't know what happened grrr.. I thought it was called Stolen Innocence but the Stolen Innocence I have found is not same story.. Im sure it was a true story though..

Try this:
Empty Cradle (1993) (TV) - Plot Summary (http://www.imdb.com/title/tt0106808/plotsummary)

Oh my goodness yes that is the film.. Thank u so much..

:)