My gynac told me a week number that didnt match my own calculation and now im totally confused. Matlab from which day do they even start counting? Someone pls explain simply.
My mother told me to count from missed period, but my doctor cleared up that it's calculated from the first day of the last period. Trust the doctor's calculations.
It is usually from your LMP, but if you have irregular periods, the doctor's dating scan will give the exact week. Better to get it confirmed by your gynac.
