ANSWER:

This is baseless. Her fast breaks the minute she gets her menses and she can eat and drink as it is haram for a menstrurating woman to fast.

I have heard that if a woman gets menses while fasting her fast is broken but she should abstain from eating until the the fast opens. Is this true?

Fasting, Menstruation and post-natal bleeding | June 13, 2018 4:27 am
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I am about 6 months pregnant and I am fasting but one day my condition became bad and I broke the fast. Is there any kuffara that I need to give?
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Sheikh if some1 is suffering from intense dry,hard and rough cough so much that he needs water to stop it,in this case can a fast be broken because water was the need at that time and without water it can’t be stop or it can get prolonged