Hi guys! I started my period on 7/02/17 it came 10 days early and lasted until 11/02/17. I'm using the app clue to help track ovulation but I'd like to double check! I've been told in normal circumstances its 2 weeks after the first day of my period which would be 21/02/17 but the Clue app is saying I should start around the 16th? I feel like this months my month and just want to really make sure!.[grin][grin][grin]