2ww is the worst. i think every little twinge is a pregnancy symptom. i get cramps and headaches and backaches and dizziness but most of those are signs of pms. i’m 13 dpo... would be getting my period tomorrow. the symptoms are intense today. i’m nauseous and very crampy but it’s as if i was getting my period. i don’t know what to think. tips or ways to tell the difference ?