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Calculate probability of spontaneous ongoing pregnancy

Catherine McDiarmid-Watt | Friday, July 04, 2008 | 0 comments

I tried doing some calculations for a 48 year old woman (oldest age they list) and got:

The calculated probability of a spontaneous ongoing pregnancy within one year is: 36.1%

Note the page says:
This probability is not reliable in case of :

* - Women with ovulation disorders
* - Men with severe male factor (Total motile sperm count = volume x concentration x % motility <>

* - Women with 2-sided tubal pathology.

Try it out at: and let me know what you get!

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About Catherine: I am mom to three grown sons, two grandchildren and two rescue dogs. After years of raising my boys as a single mom, I remarried a wonderful man who had never had a child of his own. Unexpectedly, I found myself pregnant at 49!
Sadly we lost that precious baby at 8 weeks, and decided to try again. Five more losses, turned down for donor egg, foster care and adoption due to my age and losses - we have accepted that there will be no more babies in our house.

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