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Pregnancy due date calculator and pregnancy calculator Here you will find a pregnancy due date calculator. You can use is as soon as you know you are pregnant. Our pregnancy calculator can give you an estimated date if you fill in the details below. Due date or week of pregnancy is normally calculated by doctors and midwifes using the first day of your latest period. Due date is preliminary calculated from this date. When you later in the pregnancy make an ultrasound you will get a new, more accurate and reliable date. The day you actually get pregnant is normally about two weeks later then the date that are used for the calculation. This due to the fact that de ovulation is in average two weeks after the first day of your period and this is when the actual conception takes place. However, it is almost impossible to know the exact date of conception. This is why doctors instead uses this standardized value when calculating the due date. A pregnancy normally lasts for 40 weeks (280 days), calculated from the first day of your latest period. The pregnancy is usually divided into three different periods; the first trimester, the second trimester and the third trimester. Using our due date calculator below you can learn when you can expect your little one to arrive. Calculate the due date with our pregnancy calculator The due date calculator below can be used to calculate: · Estimated Conception · Estimated Due Date · Estimated Fetal Age (in weeks) Please be aware. This is not a diagnosis. The calculations that are provided are estimates based on averages. ADD THE CALCULATOR HERE About the calculation of the due date The calculator that you just used calculate your due date by counting 40 weeks from the first day of your last period. It also takes into consideration that your cycle is consistently the same numbers of days every cycle. The average value for this is 28 days, which means that you conceive two weeks after the date you entered (when you are pregnant in week 4 the fetus is 2 weeks old). If you somehow know the day you conceived you can calculate your due date by counting 38 weeks from that date. Independently of how you do the calculation the calculated due date is just an estimate. Only one in twenty woman delivers on her due date. It is just as likely to go into labor any day during the two weeks before or after. In other words a normal pregnancy can last anywhere between 38 and 42 weeks. If this is your first child, the probability is a little bit higher that you will give birth after the calculated due date.

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