As we recently reported, researchers  have found that women who work long hours — think work weeks of more than 40 hours — and who lift heavy objects are more likely to become infertile, but some more common things may be more responsible for keeping a woman from getting pregnant.

In fact, it may not be the long hours or the heavy lifting that’s causing the infertility, but rather it’s the fact that women who do these things generally have less time for intercourse and therefore a lower likelihood for pregnancy and having a healthy baby.

That means that if a women can find time for intercourse, the hours worked or back-breaking labor may actually have no impact on pregnancy success — but there are plenty of things you definitely have to worry about.

Age is, of course, the biggest factor when it comes to infertility, and many people may not realize just how much it factors in. As women age, the amount of eggs — as well as their quality — begins to decrease. A woman’s chances of getting pregnant declines by 3 to 5 percent per year after age 30, and drops precipitously after the 40s.

But there are other somewhat more uncommon factors that can result in infertility. For one thing, women can have their fallopian tubes damaged due to pelvic infections or surgeries. Since fallopian tubes are responsible for carrying eggs from the ovaries all the way to the uterus, this can have a profound impact.

Cervical problems, when sperm can’t get into the cervical canal, can be caused by unusual mucus production or also surgery, although intrauterine inseminations can deal with the problem.

So the answer for women who are concerned about infertility is to visit their doctor and get a personalized assessment that takes into account all factors that go into a pregnancy.