Due Date Calculator Ovulation Calendar
How we calculate your fertile days.
Due date calculator ovulation calendar. Note that your menstrual period and ovulation are counted as the first two weeks of pregnancy. Our ovulation calculator gives you the dates you re most likely to be fertile over the next several months. Use this calculator to see when you may be ovulating to help find your most fertile days. If you deliver on your due date your baby is actually only 38 weeks old not 40.
Find out your due date with our pregnancy calculator below. Your due date is only an estimate. The edd can be calculated by adding 266 days to the day of ovulation fertilization. The matured egg travels south to the fallopian tube and remains viable for the next 24 hours.
Signs of ovulation rise in basal body temperature typically 1 2 to 1 degree measured by a thermometer. The due date may be estimated by adding 280 days 9 months and 7 days to the first day of the last menstrual period lmp. Simply add 280 days or 40 weeks to the first day of your last period. Determining the estimated due date the estimated due date edd or edc is the date that spontaneous onset of labor is expected to occur.
This is the method used by pregnancy wheels. However things can get complicated if your cycle length is not 28 days or if your luteal phase length is not 14 days. The first step is to know the first day of your last menstrual period and the length of your menstrual cycle. If your menstrual cycle length is the average length 28 day cycle your menstrual cycle probably started about two weeks before you conceived.
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. First we estimate when you ll ovulate by counting back 14 days from the day you expect your next period. A free pregnancy calculator to calculate your due date. The calculation of the estimated due date edd is based on the day of the date of ovulation and fertilization.
If you know when conception happened then just add 266 days or 38 weeks. The most common way to calculate your pregnancy due date is by counting 40 weeks from the first day of your last menstrual period lmp. If your cycle is 28 days long your next period should start 28 days from the first day of your last period. Use your lmp and cycle length in our pregnancy calculator to discover your own pregnancy calendar.