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Enter date of last menstrual period, gestational age (on today's date or other ultrasound date), date of conception, OR estimated due date to estimate the other dates. Only EDD is affected by cycle length ≠28 days when calculating from LMP, EGA, and EDC.
This pregnancy calculator uses one of two methods to work out when your baby might be born. If you fill in the start date of your last period, it takes that date and adds 40 weeks (assuming you've chosen a 28 day average cycle). If you've chosen a different cycle, it will add or subtract days based upon that.
2 wrz 2022 · That’s where our due date calculator or due date predictor comes in. By using some basic information about your last period and cycle length, our pregnancy calculator can help you work out your estimated due date (EDD — aka when you might meet your baby).
Our online due date calculator uses a simple method to calculate your due date. Your due date is estimated to be 40 weeks after the first day of your LMP. Your cycle is assumed to be 28 days long, with ovulation occurring at day 14. Therefore the calculator adds 280 days (40 weeks) to your LMP.
This free due date calculator estimates the due date based on the menstrual cycle, ultrasound, conception date, or IVF transfer date.
Your due date is calculated by adding 280 days (40 weeks) to the first day of your last menstrual period (assuming a 28 day cycle). Note that your menstrual period and ovulation are counted as the first two weeks of pregnancy. If you deliver on your due date, your baby is actually only 38 weeks old, not 40.
The due date is calculated based on the average length of pregnancy, but factors like the length of your menstrual cycle, the exact day of ovulation, and even the accuracy of your memory when recalling your LMP can affect this estimate.
