When Does Pregnancy Occur?
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. Researchers found that the potential for fertility exists on almost every day of a woman’s menstrual cycle. Most women in the study were between the ages of 25 and 35–prime reproductive age and the age when menstrual cycles are most regular. The window of fertility was found to be even more unpredictable for teenagers and women approaching menopause. Data on tests of 213 women during almost 700 menstrual cycles concluded that even women with normally regular menstrual cycles should be advised that their fertile window can be significantly unpredictable. The NIEHS’ Allen J. Wilcox, M.D., Ph.D., statistician David Dunson, Ph.D.,
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. Researchers found that the potential for fertility exists on almost every day of a woman’s menstrual cycle. Most women in the study were between the ages of 25 and 35–prime reproductive age and the age when menstrual cycles are most regular. The window of fertility was found to be even more unpredictable for teenagers and women approaching menopause. Data on tests of 213 women during almost 700 menstrual cycles concluded that even women with normally regular menstrual cycles should be advised that their fertile window can be significantly unpredictable. The NIEHS’ Allen J. Wilcox, M.D., Ph.D., statistician David Dunson, Ph.D.,
