Extreme Exercise

Exercise is supposed to be good for you — but exercising too much or running too fast can have serious consequences for your body and brain. While it has been suggested that exercise may speed up the process of conceiving, it's also best to avoid over-exercising.

The same study that found a link between moderate exercise and a shorter gestation length also found a link between vigorous, high-intensity exercise and a longer gestation. Excessive exercise may, in part, cause rapid weight loss and hormonal changes that might lead to missed or irregular periods. However, if you're overweight, working out can help you lose weight and raise your chances of getting pregnant. But remember to keep it in moderation.