Attending her first Startup Weekend competition a year ago, Claire Coder couldn't wait to brainstorm ideas with other budding entrepreneurs. The young woman's body had other plans, though. "I got my period," said Coder, an Ohio State University freshman at the time. "I couldn't stop thinking about my cramps." The ill-timed — and all-too-familiar — distraction inspired an epiphany of sorts.adcelannotate = {"mobilepaywallcategory" : "MOBILE_PREM-LIFE_ENTERTAINMENT","nativepaywallcategory" : "NATIVE_PREM-LIFE_ENTERTAINMENT"};