1 in 10 known pregnancies end in miscarriage.
Nearly 50% of all fertilized eggs end in miscarriage. This statistic is for all pregnangies, known and unknown.
Most miscarriage occur between the 4th and 12th week of pregnancy.
Miscarriages are caused by many factors. Factors which include but are not limited to: fetal death, fetal growth abnormalities, infection, physical defects with the mother, and hormone factors.
60 - 75% of women with previous miscarriages are successful the next time. However, if a woman miscarries more than twice her changes of having a normal pregnancy declines some with each miscarriage.
Hope this helps some.
May God Bless You!!!!