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Women's Health Blog

By Tracee Cornforth, About.com Guide to Women's Health since 1997

Don't Be So Sure Pregnancy Won't Occur During "Safe" Days

Sunday September 7, 2003
When Does Pregnancy Occur? Study Shows Few "Safe" Days During Menstrual Cycle
Forget everything you have heard about when pregnancy occurs. According to researchers at the National Institute of Environmental Health Sciences, only about 30 percent of women actually have their fertile period between days 10 and 17 of their menstrual cycle. This adds validity to what many 'accidentally' pregnant women, including myself, have long suspected.

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