I use ovia and glow. They seem to be a week apart as far as my fertile week and when my period should arrive. I post the same in both apps why the difference and which should i follow? I believe i ovulated on the 11th. According to ovia i should have started period yesterday nothing yet. According to glow i have 4 days until my periods even due ugh. When should i test? Symptoms include nausea,headaches,fatigue,mild cramping,frequent urination,starving all the time. mild breast tenderness but nipples hurt bad (I will add that im currently breastfeeding a 7 month old so that may be from him but man it hurts when he latches now). Oh and the one that really makes me wonder. My dh has asked me like 8 times in the last 4 days if i got my period yet. Hes never done that. We are not trying to get pregnant but have not been the best at using birth control.