To know when a child will be born brings to my mind a question how to count weeks calendar. After checking, there are a wide number of free calculators available that help us count the number of weeks we have been pregnant and determine due date.
Many use a formula called Naegle's Rule to calculate the number of weeks based on a set point (the date of you started your last menstrual period) and count forward 40 weeks for a due date. Most accurate way to count weeks is based on normal pregnancy duration of 38 weeks that assumes you became pregnant exactly two weeks after your period.
Things are Find, or estimate, the date of the first day of your last period (LMP).
Count backward three months from that date, then plus seven days. This will be approximate due date. Even though you are counting backward, the date is the next occurrence of that date. For example, a LMP in February should give you an approximate due date in November.
