Some advantages of blended learning, particularly at a Kindergarten to grade 12 level of education, can be found under the general concept of educational technology. It is also one of the most effective ways for Personalized learning at scale.
The length of a human pregnancy can vary naturally by as much as five weeks. Credit: Â© Jessmine / Fotolia. The length of a human pregnancy can vary naturally by as much as five weeks, according to research published online August 7 in the journal Human Reproduction. Normally, women are given a date for the likely delivery of their baby that is calculated as 280 days after the onset of their last menstrual period.
Also during this first visit, the doctor will try and predict your due date. This is also referred to as the estimated date of delivery, or EDD, or the estimated date of confinement, or EDC. An average pregnancy is 280 days, or 40 weeks, from the first day of the last menstrual period. However, a normal pregnancy can last between 37 weeks and 42 weeks. Only about 5 percent of babies are born on their exact due date. Most women give birth within two weeks of the predicted date.