The human gestation period--the period of time between conception and labor--is approximately forty weeks (280 days), measured from the first day of the mother's last menstrual period. A gestation...
The gestation period of a human, from time of conception to birth is approximately 9 months (266 days/38 Weeks). 9.5 months is calculated from the first day of the last menstrual period (280 days/40...