Hi, I am 40 years old.in august I got my period on 31st and in september I got it on 26.in october. Most probably it will be 21 or 22. I want to delay it till. 27 of october. I consulted a doctor. She advised me take regestrone 5 mg from 15 of october twice a day. Is days and dose correct. Please tell. Are there any side effects of the medicine?

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