For nearly a week out of every month, adult women endure the twisting gut wrenching reminder that they didn't successfully get impregnated this month. Whether you're on a dry spell, have a happy 'not pregnant' surprise, or you were really not hoping for your period this month, the whole menstruation part will take you on a roller coaster. Crippling cramps and dodgy mood swings are usually the first sign of Aunt Flo knocking at your door. Crying for no reason? Wait 24 hours to realize the true culprit of your emotional turmoil. And once you're in the thick of it, you'll take a look at that whole Midol bottle and consider Googling the maximum dose that you could survive– your uterus is acting like you're not willing to take you both out at this point. Fortunately, once you ruin your favorite underwear and burn every bridge with your coworkers with your unhinged fury, you can look forward to the exact same thing in 4 weeks! Can't wait.