By Alan Jones, PA Industrial Correspondent & Lawrence Matheson The Government is being called on to double maternity pay so mums aren’t forced back to work too soon. Unison and Maternity Action have said the weekly amount should be raised to £364.70. They’re worried that some mums are cutting their maternity leave short, skipping meals and making other tough choices because they can’t afford to live on the current weekly amount. Ministers were told that women should get the same as the national minimum wage of £10.42 an hour. A recent survey found that a quarter of mums on maternity leave say …