Since September till December <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">Eve</a> has been spot on on every single period it was brillent but then in January I was late by three and period lasted two in feburaday I was late by two and lasted three now in March im late by three but I have the stomach pains and movements I always have is my cycle just changing cause I'm 18 or is <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">eve</a> lagging ? I'm kind of confused x