for me i'm slightly different, my period has never been regular but base on my recent tracking of my period it cames up to average of 38 days. my last period started on the 6 feb n still have 3 days more for my period to come. but for the past one week i have been feeling pms.. heaviness bloating slight cramping. tested twice both neg.. i have bought the preg n ovulation kit but have not receive yet..
i just found this on the web ytd on when to test for ovulation.