Miscarriage is defined as a spontaneous abortion or pregnancy loss before a pregnancy is able to independently sustain itself before 20 weeks.

It is reported that around 10 to 25% of persons under 35 will have a known miscarriage.  Fertility specialists indicate that around 25% of known pregnancies will end is a miscarriage.  It is also estimated that around 30% to 50% of fertilised eggs will result in a miscarriage, so this is really where ladies are not even aware that they have become pregnant. 

Miscarriage is largely as as result of chromosomal abnormalities.   Essentially such a baby's being would not be compatable with life and consequently the embryo or baby has natually aborted.  Naturally this chromosomal abnormality may have been derived from either the egg or sperm.

The USA reports around 1 million known miscarriages annually.  The America online report of health and wellbeing indicates that around 85% of persons will continue to have a healthy pregnancy and live birth after one miscarriage.

Psychologically and emotionally, a miscarriage is a devastating experience especially if persons have been trying to conceive and a dedicated effort, such as fertility treatment has been undertaken.  The upside is that nature has intervened in the best interests of the mom and the baby and we can resign ourselves to this higher force that is underway with our best interests at heart.

Based on the above statistics, it is therefore quite common that ladies would have experienced miscarriages and this does not in any way influence their ability to become wonderful egg donors.  During an egg donation process, usually a few eggs are retrieved from donors and it may well be that not all of these proceed to fertilisation as a result of this very topic of either some of these eggs and/ or sperm may have chromosomal abnormalities.  The fact that some of these eggs continue to become healthy embryos and subsequently babies is indicative that once off reported miscarriage is not a criteria for major concern for egg donors.