Once your pregnancy have been confirmed, what you most want to know is your due date. Luckily this
calculator will help you determine the expected due date.
Average length of pregnancy is forty week or two hundred eighty days from first day of last menstrual
period. If you know this date then Simply add nine months and seven days and you've got your due date.
If your cycle is irregular or you don't know the date, your doctor will use the ultrasound and
determine fetuses age.