The estimated due date (EDD) is the date when labor is expected to start spontaneously. The due date may be predicted by subtracting 280 days ( 9 months and 7 days) to the beginning day of the last menstrual period (LMP). "Pregnancy wheels" employ this technique. The consistency of the EDD calculated using this approach is dependent on the mother's exact recollection, normal 28-day cycles, and the assumption that ovulation and conception occur on day 14 of the cycle.
To find out how far along you are in your pregnancy, follow these three basic steps:
Remember that each pregnancy is different, therefore the outcome of the due date calculator will be an estimate rather than a specific date.
Counting 40 weeks from the first day of your last menstrual cycle is the most frequent method for determining your pregnancy due date. That's how the majority of healthcare practitioners go about it.
If your menstrual cycle is the typical length (28 days), it began around two weeks before you conceived. This explains why, instead of 38 weeks, pregnancies are supposed to last 40 weeks.
This approach disregards the length of your menstrual cycle or the time you believe you may have conceived. Women, on average, ovulate around two weeks after their menstrual cycle begins.
Should you know exactly when you conceived – for example, if you used an ovulation predictor kit or kept track of your ovulation symptoms – you may use that information to calculate your pregnancy due date. Simply select the appropriate calculating technique from the drop-down menu above and enter your date.