Impact of female age and nulligravidity on fecundity in an older reproductive age cohort

Wednesday, June 1, 2016
Women experience a significant reduction in fecundity and an increase in the probability of infertility in the late thirties. At any age >30 years, women, who have never conceived before, have a lower probability of conception.

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Prospective evaluation of the impact of intermenstrual bleeding on natural fertility

Sunday, May 1, 2016
An episode of intermenstrual bleeding statistically significantly decreases the odds of conception in the current cycle but does not appear to negatively impact a woman’s future reproductive potential.

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Body mass index physical activity and fecundability in a North American preconception cohort study

Thursday, April 7, 2016

Authors:
Craig J. McKinnon, M.P.H., Elizabeth E.…

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Peri implantation intercourse lowers fecundability

Wednesday, June 25, 2014
Two or more acts of intercourse during the peri-implantation window is associated with a lower probability of pregnancy given prior intercourse during the fertile window.

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Active and passive smoking and fecundability in Danish pregnancy planners

Wednesday, June 25, 2014
Cumulative exposure to active smoking was associated with reduced fecundability among current and former smokers. Time since smoking cessation and passive smoking were not appreciably associated with fecundability.

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Cervical mucus monitoring prevalence and associated fecundability in women trying to conceive

Monday, September 30, 2013
Consistent cervical mucus monitoring is uncommon but is associated with increased probability of conception independent of intercourse frequency and urinary luteinizing hormone monitoring.

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Volitional determinants and age related decline in fecundability a general population prospective cohort study in Denmark

Friday, May 31, 2013
Fecundability peaks around age 30 years and then declines, more steeply for nulliparous women. Men have a more modest decline with age. Volitional factors can offset some of the decline.

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Low concentration of circulating antimüllerian hormone is not predictive of reduced fecundability in young healthy women A prospective cohort study

Thursday, November 29, 2012
Low AMH levels in young healthy women did not predict reduced fecundability. Even after exclusion of women with irregular cycles, the probability of conceiving was reduced in women with high AMH levels.

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A prospective cohort study of physical activity and time to pregnancy

Friday, May 4, 2012
In this prospective cohort study, vigorous PA was associated with reduced fecundability in all women except overweight or obese women. Moderate PA was associated with a small increase in fecundability.

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