Advertisement
90% of miscarriages happen in the first trimester.
About 80 percent of miscarriages (also called spontaneous abortions) occur during the first 12 weeks of pregnancy, and half of those are caused by chromosomal abnormalities that are incompatible with a live birth. The risk of miscarriage increases with the number of previous births as well as both maternal and paternal age: A quarter of miscarriages happen in women older than 40.

More About this Book
YOU: Having a Baby: The Owner's Manual to a Happy and Healthy Pregnancy
Can I get a cavity filled while pregnant? Will avoiding spicy foods make my kid a picky eater? Can I really increase my baby's IQ while she's in utero? Whether you're pregnant for the first time,...
Continue Learning about Infertility
Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.