So usually my period is right on and I can predict it. I cannot this month. I followed glow and it said 6 of Jan it would start and today is 8 still not started. Last month it started on the 11. I think I am gonna wait until the 11 and see if I have it. We were trying to get pregnant and tried following the calendar of ovulation! Either yay or nay on 11. If I don't have it in a week taking a test! What u think? Thanks so much! Crossing my fingers no period!