1 Cooking equipment is the leading cause of home fire injuries, followed by heating equipment. 2  Smoking materials are the leading cause of home fire deaths.  Most fatal fires kill one or two people. In 2014, 15 home fires killed five or more people resulting in a total of 88 deaths.
Normally, your due date is 280 days (40 weeks or about 10 months -- also known as 10 lunar months) from the first day of your last period. Your health care provider may order an ultrasound to more accurately determine your due date.
Naegele's rule is a standard way of calculating the due date for a pregnancy. The rule estimates the expected date of delivery (EDD) by adding one year, subtracting three months, and adding seven days to the first day of a woman's last menstrual period (LMP). The result is approximately 280 days (40 weeks) from the start of the last menstrual period.