Y 1st day of last period
Why first day of last menstrual cycle is calculated for due date it should be ideally as per the pollution which happens in second week of your period my due date is 7th July but my first day of last menstrual cycle Boss 15th September but Doctor says there is a late conception why to breathe so the due date is 7 July instead of 21st june can you tell me what is correct
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U r right ideally we should be calculating edd fro the day of conception, but none of us exactly knows when u have conceived so we take the date which cannot be mistaken, IE the first day if LMP. It is so the reason behind the fact that only 4% deliveries deliver on the edd given by the doctor. Equally correct is two scans done in early pregnancy and their mean can be taken as an accurate EDD
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