How accurate are early ultrasounds for conception dating 100 eruopean dating site

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So, by this example you can understand you have a five day window during which you could have conceived.If you were tracking other signs of fertility, such as basal body temperature charts, or ovulation predictor kits, they can help you narrow down your conception date to within one to two days.If your cycle lengths vary a lot, your results might not be accurate.The calculator assumes ovulation occurs 14 days before the date of an expected period as explained in the section on 'Calculation by Menstrual Cycle Length' above.However, you can use various factors and knowledge about reproduction to help narrow down the date to within one to five days if your cycles are regular.

If you kept a basal body temperature chart (BBT) during the cycle you conceived, this is a useful tool to help pinpoint when you ovulated and therefore conceived.

By these facts: A conception date calculator can make it easier to figure out your date.

The calculator below works for you if your menstrual cycles are regular and are between 24 and 38 days long.

If you tracked these changes, the day before your mucus changed to a thick, tacky, cloudy, dried-up mucus was the day of ovulation, and your likely date of conception.

The day of ovulation, your mucus would have been at its most thin and watery, as well as clear and stretchy like egg white. Once your doctor or midwife gives you your due date, count 38 weeks back on a calendar to find your most likely conception date.

This calculation assumes the following: If your cycles are longer or shorter than 28 days, this method is less accurate.

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