My SO and I have been trying for the last two months. I started to spot in November and my period never fully hit. I have in the past used a <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">period app</a> called <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">period tracker</a> and I still continue to use, It has never been wrong in detail. I recently started to use glow because a friend told me about it and I have loved it so far. The issue I’m having is <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">Period tracker</a> says I am 4 days late and Glow says I am not supposed to start until 22? Which one should I believe? I’ve been nauseous off and on and have been constantly tired no matter how much sleep I get as well as weird dreams at night. I could use your help!!