Think its called This womans work, or similar. It was used in the ITV drama 'Walk Away and i stumble' and i know the answer is posted on questions in Film/Tv topic.
Yes it is called 'This Womans Work' and is taken from the film 'She's Having A Baby' and can be found on the soundtrack to the film. It also appears on 'The Sensual World' by Kate Bush and I have seen it on various compilation albums.