hi, i m vanessa, 18yrs old, i am a filipina, i just wanted to ask why i still didn t have my period? my last period was on april 16, 12, i have a 28 day cycle, but sometimes my period comes 1 day earlier or 1 to 2 days late, but now it s 3days late. i wonder what is the cause of that. thank you, i hope you could help me about this.