Confuse advice would be very greatful

I been on the implant since last year of May 16, 2013 I got off of the birth control in December 27, 2013  did not have a cycle in January 2014 which they say it normal have to wait to 
the cycle to regulate but I had my cycle on February 1-5, 2014 it was normal now today is the march 1, 2014 and glow calendar say I should start  my cycle today?  And I No for a fact I'm not I would normaly cramp a couple day before my cycle but I have been feeling nauseous if I don't eat any thing all last week