Daybreak's Health Editor Dr Hilary Jones has told Daybreak that there is a very high risk to premature babies.
"There is a very high risk of a child being handicapped if it is born before 24 weeks, even with modern technology," he added.
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A milder night and staying frost free, with outbreaks of rain and misty low cloud for the hills and higher ground.
The Government is launching a consultation on whether to move Channel 4 out of London, Culture Secretary Karen Bradley has announced.
The PM wants a simultaneous negotiation of how much we owe the EU in unpaid budget liabilities and a future trade deal with the EU.