besides heartbreaking for the mom, it is normal and natural and often nature's way of dealing with an abnormal fetus.
A miscarriage, (also known as a spontaneous abortion, which is probably why these morons get so worked up) usually occurs within the first 20 weeks of gestation.
Miscarriage is the most common type of pregnancy loss, according to the American College of Obstetricians and Gynecologists (ACOG). Studies reveal that anywhere from 10-25% of all clinically recognized pregnancies will end in miscarriage. Chemical pregnancies may account for 50-75% of all miscarriages. This occurs when a pregnancy is lost shortly after implantation, resulting in bleeding that occurs around the time of her expected period. The woman may not reaize that she conceived when she experiences a chemical pregnancy.
During the first trimester, the most common cause of miscarriage is chromosomal abnormality meaning that something is not correct with the babys chromosomes. Most chromosomal abnormalities are the cause of a damaged egg or sperm cell, or are due to a problem at the time that the zygote went through the division process.
Women under the age of 35 yrs old have about a 15% chance of miscarriage
Women who are 35-45 yrs old have a 20-35% chance of miscarriage
Women over the age of 45 can have up to a 50% chance of miscarriage
A woman who has had a previous miscarriage has a 25% chance of having another (only a slightly elevated risk than for someone who has not had a previous miscarriage)
But because education is a tool of the devil - we have ignorance trying to rule everything a woman can and can not do.