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I'm 18 And I've been using Glow for about a year and it's been pretty accurate with my period. Especially over adjusting it every month it's been accurate. Lately I've been having stomach aches, been emotional, and my boobs are sore 😐 ive never felt that before!. And it shows that my period is 3 days late..  what do you guys think? 😩🤔