But if you are asked to enter the last day of your LMP, you will also have to take note of the day when your menstrual period ended.
So you need to figure out first your last menstrual period in order to accurately predict your estimated due date or EDD.
With the estimated delivery date, it will count back 38 weeks to give an approximate date of conception.Our goal is to provide you with an easily used calculator to help you quickly figure out the pregnancy dates you need to know.Whereas 80 of babies arrive either two weeks before the due date or two weeks after.Sep 4 1993;307(6904 588-91.The practicality of using this calculator vary from woman to woman.The gestational age should,therefore, be at least 10 to 12 weeks if fetal heart tone are heard.The gestational age would, therefore, be at least 3 to 4 weeks at the time of a reliable hCG pregnancy test.Method for estimating due date.Other calculators, adult friend finder wife such importance of eye contact in sex as ovulation calculators, due date calculators, and sexual intercourse timing calculators, are useful for women interested in their fertility and pregnancy.The basal temperature method is another way to figure out the days past ovulation, otherwise known as your luteal phase, which are the days between ovulation and the day before your next period.American College of Obstetricians and Gynecologists.Already know your due date?J Clin Endocrinol Metab.Typically, your estimated due date is about 40 weeks from the first of your last menstrual period, but this is just an estimate.Only 4 of babies are born on their due date.In addition, in situations where a woman had different partners at a given time and would like to know the father of her baby, using a conception calculator can give her a clue.Savitz DA, Terry Jr JW, Dole N, et al: Comparison of pregnancy dating by last menstrual period, ultrasound scanning, and their combination.If you know either of these figures, you can input this information into the conception calculator along with the current date to find out the possible days of conception.
You can also use the conception calculator if you know the due date of your baby.
Obstet Gynecol 2009;113: 45161.