A typical pregnancy lasts, on average, days, or 40 weeks—starting with the first day of the last normal menstrual period as day 1. An estimated due date can be calculated by following steps 1 through For example: Your last menstrual period began on September 9,
Estimated date of delivery
Pregnancy Calculator| Calculate Due Date By Conception Date
Friends and family will want to know so they can look forward to greeting your new baby and supporting you, the new mother. Doctors, midwives, and nurses will want to know so they can track important health milestones and make decisions about interventions and prenatal testing. The simple truth is that only 5 out of women will deliver their baby on their actual due date. Your due date—sometimes also referred to as the estimated date of delivery—is less of a deadline and more like a time marker. Your due date indicates the 40th week since your last menstrual period or the 38th week from ovulation. Once your due date is calculated, you likely to give birth within a four-week period that surrounds your due date.
Calculating a Due Date
Right now there is a lone egg and a whole bunch of anxious sperm eager to fertilize the egg. Your uterus and the entire body are preparing for a big day of ovulation - the stage when you'll get pregnant. Week 3 of pregnancy is the week when the implantation happens. Your body releases chorionic gonadotropin hCG , which causes an increased production of estrogen and progesterone, and prevents new eggs in the ovaries from ripening.
Pregnancy lasts an average of days 40 weeks from the first day of your last menstrual period LMP. Read our report on the 13 best pregnancy iPhone and Android apps of the year here. Add seven days to the first day of your LMP and then subtract three months.