About Fertility

Does Working the Night Shift Increase the Risk of Miscarriage?

Women Working Late

A recent Danish study examined a cohort of over 22,000 pregnant women, specifically looking at work shifts and pregnancy outcomes. Does working the night shift increase the risk of miscarriage? They found that after 8 weeks of pregnancy, women who worked two or more night shifts the previous week had a 32% increased risk of miscarriage compared with women who did not work night shifts. Additionally, the more night shifts a woman worked, the greater the risk of miscarriage.

This study is in agreement with earlier studies that suggested that overnight work during pregnancy may increase the risk of miscarriage, even with as little as two night shifts per week. While shift adjustment may not be feasible for all patients, it is worth considering in women with a history of recurrent unexplained losses.

At Fertility Centers of New England, many patients come to us because they are struggling with infertility and/or miscarriages. We are proud to have helped thousands of patients realize their dream of becoming a parent. We want each of our patients to have the safest, healthiest pregnancy possible. If you have questions about your fertility or would like to set up a consultation, please contact us today.