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Only aboout 1/3 of the eggs a woman makes are capable of a siccessful pregnancy. Too many eggs have either an abnormal chromosome structure or a genetic issue. Depending on the stage your embryos are frozen, it may be possible to perform a limited chromosome analysis. That has hystoricly been done on day 3 embryos. There is a new technology which should be availble soon, in which the blastocyst can be biopsied and a greater number of chromosomes tested. It does require freezing the blastocyst after biopsy. The bottom line is that I do not know how much good testing your frozen embryos will provide.
From you note, it sounds as though you have had 2 losses. Typically, we perfom an evaluation of the couple after 3 miscariages. For more information about evaluation of the couple experiencing recurrent pregnancy loss, I invite you to see our web page, texasfertility.com.
Goodluck.
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