what causes a miscarriage in your first trimester?

Miscarriage
Having a miscarriage does not necessarily mean you have a fertility problem. Most women (87%) who have miscarriages have subsequent normal pregnancies and births.
Symptoms and Causes Diagnosis and Tests Outlook / Prognosis
Overview
What is a miscarriage?
A miscarriage, also called a spontaneous abortion, is the unexpected ending
causes of abortion?

Miscarriage
Having a miscarriage does not necessarily mean you have a fertility problem. Most women (87%) who have miscarriages have subsequent normal pregnancies and births.
Symptoms and Causes Diagnosis and Tests Outlook / Prognosis
Overview
What is a miscarriage?
A miscarriage, also called a spontaneous abortion, is the unexpected ending