Female Age and Miscarriage - Spontaneous Abortion

Female age and Miscarriage rates increase beginning in the early 30s - and even more after age 40. This is due to chromosomal problems in aging eggs.

Miscarriage, Pregnancy Loss, and Fertility: What to Know

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Miscarriage rates by week: Risks and statistics

Abortion - Wikipedia

Incomplete abortion: Spontaneous Termination of Pregnancy

Receipt of mRNA Covid-19 Vaccines and Risk of Spontaneous Abortion

Miscarriage (early pregnancy loss)

Probability of miscarriage by age of the woman

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Paternal age and the risk of spontaneous miscarriage