My period is now late by 6 days and I’m starting to panic. I am sexually active but I know for sure that I am not pregnant. I haven’t shown any symptoms like tender breasts, nausea, spotting, change of color on nipple... none of that. I just noticed this morning that I’ve lost 20 pounds within a month from a lack of eating and excessive exercising... I read online that it’s possible to skip over a cycle from weight loss / gain... Is it possible that I skipped my cycle because I lost 20 pounds?