So I have three period trackers that say three different period dates. The glow tracker says it starts today. The flower <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">period tracker</a> says im three days late (start date Oct 6). My calendar tracker states af is not due October 15. I already took two pregnancy test. They came out negative However, one seem to have a fainted line. My bf looked at both test in saw a negative lines. At this point I am hopeless. In my cycle is regular. I haven't had any recent changes or stress. So my question now is, What should I do?