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by cs02rm0 2348 days ago
1 in 4 pregnancies was the figure I was quoted, when my wife had a miscarriage.
1 comments

1 in 4 known pregnancies. Most miscarriages occur before pregnancy hormones able to be detected. Probably around 40-60% of fertilized eggs die.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5443340/