When are miscarriages most likely to happen?

Kevin W. Windom, MD

OBGYN (Obstetrics & Gynecology)

90% of miscarriages happen in the first trimester.

Dr. Michael Roizen, MD

Internal Medicine

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.

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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.

Infertility

Infertility may affect women, men or both. Infertility may be considered primary, meaning this is a couple’s first attempt to have a baby; or secondary, in which they aren’t able to conceive after having had one or more children. Learn more form our experts about infertility.

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