Advanced maternal age is the most well known cause. Why, is not fully understood. But as I mentioned before, the eggs (ova) in you, the mother, maybe showing the effects of growing older. There appears to be no link to your having taken birth control pills, and also no association with the sex of your fetus. It is, in fact, a myth that more baby boys, rather than girls, are lost due to miscarriage.
It is also possible that problem occur during the tenuous process of fertilization and the ensuing miraculous fusion of sperm and egg, which manage to combine to make one new human being.
When fertilization happens, at the time of ovulation, an egg is usually fertilized by one sperm in the fallopian tube. It all sounds so simple but, in fact, is very complicated because before conception the chromosomes of the egg and sperm cells must first divided (meiosis), so that each contains only 23 chromosomes (half the number for a human being). Then when they join, they will have the normal chromosomal number, 46. if problems occur during this process, chromosomal abnormality may result, which in turn may led to a miscarriage.
But suppose your doctor has recommended you and your partner to attend genetic counseling, or the maternal from your miscarriage was sent to a genetic laboratory for chromosome testing. Just what information is your doctor looking for?
