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Using a Pregnancy CalculatorTo determine the due date of a baby there are a different number of types of pregnancy calculators that can be used. Most pregnancy calculators rely on the date of the woman’s last menstrual cycle in the early stages of a pregnancy. This means that an estimate of when the baby is due is all a pregnancy calculator can do. This type of pregnancy calculator cannot be completely accurate for a number of reasons. The date of her last period must obviously be remembered. Before a woman thinks she may be pregnant she may have missed more than one menstrual cycle especially if she was not planning on becoming pregnant. A woman can be prevented from remembering the last time she actually exactly had a menstrual cycle since there are a lot of reasons for a woman not to have a period. A woman who has irregular periods may be unable to provide an accurate date of her last period and a pregnancy calculator can only work with the information that a woman provides of the date of her last menstrual cycle. An estimate of due date for birth is the only this a pregnancy calculator can be used for in the early stages of pregnancy. In the initial stages of your pregnancy a health professional will use this type of pregnancy but it can be extremely inaccurate for the estimated due date. To determine the size of the growing fetus a woman can be given a scan approximately ten weeks after she became pregnant. Various measurements can be gained from these ultrasound scans which provides information used in a pregnancy calculator to more accurately determine the estimated due date. More accurate figures for a pregnancy calculator to predict the date of birth are provided by the length of the fetus and the size of its head at various stages throughout the pregnancy. More than any type of pregnancy calculator this type is likely to provide the most accurate due date rather than those based on a woman’s previous menstrual period. By using these measurements a woman can get the best estimate from the pregnancy calculator about when her baby is due since the fetus grows at a predicted rate. During the pregnancy, ultrasound scans are given at various intervals to check the progress of the baby and confirm the pregnancy calculators estimated due date. |
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