I've only been tracking my period with this app for three months, but according to the app, my period is now seven days late. :)
June 5th note: Bad left sided pain. At the time, thought maybe it was ovulation, although that would have been really late. Now I'm thinking maybe it was implantation?
June 13th note: Negative pregnancy test. :(
June 14th note: Negative pregnancy test. :(