Even less fun than your actual period is the week or two of symptoms that many of us experience leading up to it. “Premenstrual syndrome,” which most of us know as PMS, is very common. In fact, nearly half of women experience PMS at some point in their lifetime. And while it looks different in everyone, PMS is thought to be caused by the same thing: fluctuating hormone levels throughout the menstrual cycle.
The signs your period is coming aren’t the same for every person, and they can even change for an individual from month to month. For some, PMS symptoms are a minor annoyance, but for others, they can be debilitating.
You can always use Flo's online period calculator to get an idea of when your next period might be due, but it's also worth delving into some of the physical signs your period may be on its way. That way, you know what to look out for so you don’t get caught short without your menstrual product of choice.