It is still unknown whether the night shifts were a factor or cause of the miscarriages.Īnother study concluded that night shift work can cause irregular menstruation in some women. However, the research did not take into account other factors that could have affected the participants' fertility and did not prove a causal relationship. A 2019 study of 22,744 women discovered an association in which pregnant people (between 8 and 22 weeks) who had worked at least two night shifts in a week experienced a 32% increased risk of miscarriage in the week after they worked. Working nights or the 'graveyard shift' may also affect your fertility. Research has shown that people who regularly get less than five hours of sleep are more likely to experience obesity, which can increase the risk of pregnancy problems and miscarriage. Researchers also observed that in situations where one partner was significantly more stressed than the other, there was a lowered chance of conception.

A 2018 study by the Boston University School of Public Health, for example, found that women who had high levels of perceived stress experienced lower levels of fertility than those with less stress. The American Society for Reproductive Medicine states, 'Even though infertility is very stressful, there isn't any proof that stress causes infertility.' And in the case of moderate stress, a 2019 study noted no negative effect for women who were trying to conceive.Įven so, other studies demonstrate the opposite effect. There have been studies that link stress to lowered fertility, but there is also research that suggests otherwise. What is definitively known, however, is that there are stress-related factors that can make it harder to conceive.

Whether stress itself can make getting pregnant difficult is still a matter of debate. If you or someone you know is trying to get pregnant, you may have heard well-meaning advice like, 'Just relax, and it will happen!' But the truth is a bit more complex.

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