We recently reported that women who work 40+ hour work weeks and lift heavy objects are prone to infertility — but it may be these common things you should be worrying about a lot more.

After all, the study found that perhaps it’s not the long work hours or the heavy lifting that’s causing the infertility directly, but rather the fact that women who are doing these things might not have as much time for sexual intercourse and thus have a lower chance of success.

So if a woman can make time for intercourse, it might not matter how much she works or what kind of work she does. Instead, women should be far more concerned about a few things that heighten their chance of infertility.

The biggest factor is age. As you get older, your eggs diminish, as does the quality of those eggs. Scientists estimate that a woman’s chances of getting pregnant drop by 3 to 5 percent each year after 30 years age, and it only gets worse once you hit your 40s.

But there are certainly other factors. Women who have damaged fallopian tubes — which is what carries the eggs from the ovaries to the uterus — due to pelvic infections or surgeries may also become infertile.

Then there’s cervical causes. Some women may have a condition in which the sperm can’t get through the cervical canal, perhaps due to unusual mucus production or surgery. Intrauterine inseminations may be able to deal with this problem.

But then again, sometimes there’s just no explanation. About 20 percent of couples will have infertility for unexplained reasons.

What’s the best way to deal with it? Visit your doctor. Every individual is different — different DNA, body makeup, and lifestyle — and so it will take an individual doctor to diagnose your current situation and give you the best options to move forward toward having a healthy baby.