Main article: Articles of Confederation. The Articles of Confederation and Perpetual Union was the first constitution of the United States. It was drafted by the Second Continental Congress from mid-1776 through late-1777, and ratification by all 13 states was completed by early 1781.
In those under the age of 35 the risk is about 10% while it is about 45% in those over the age of 40. Risk begins to increase around the age of 30. About 80% of miscarriages occur in the first 12 weeks of pregnancy (the first trimester). The underlying cause in about half of cases involves chromosomal abnormalities. Other conditions that can produce similar symptoms include an ectopic pregnancy and implantation bleeding.
About 15-25% of recognized pregnancies will end in a miscarriage. More than 80% of miscarriages occur within the first three months of pregnancy. Miscarriages are less likely to occur after 20 weeks gestation; these are termed late miscarriages. What Are the Symptoms of a Miscarriage? Symptoms of a miscarriage include: Bleeding which progresses from light to heavy; Severe cramps; Abdominal pain; Fever; Weakness; Back pain; If you experience the symptoms listed above, contact your obstetric health care provider right away.