Irregular Periods Explained: The Main Reasons Why Your Period Is Out of Whack

Exercise

A woman’s body needs sufficient energy to menstruate properly. If a woman is exercising excessively to lose weight and burning too much of her energy at the gym, there will be no energy left for her body to draw from during her menstrual cycle. One of the hormones present during a woman’s menstrual cycle - called leptin - is stored and produced in the fatty tissue. Training excessively and influencing drastic weight loss changes can decrease body fat, causing this and other hormones to drop and contributing to an irregular period.

Birth Control Pills

A woman’s body can take several months to adjust to the high level of hormones that birth control pills provide. Additionally, one of the side effects of a low estrogen birth control pill is a light or non-existent period. For many women, this is a positive side effect. However, when women decide to stop taking their birth control pills, their cycle may take a few months to operate normally again. Birth control pills do not always cause women to miss their period; sometimes it might be once a woman has stopped taking birth control that they find they have hidden hormonal problems that weren’t visible due to being on the pill.