I have just completed my second month on Tri-Sprintec, however, I have noticed that my periods are quite long (8 days) and heavy. During the second pack it came on the last couple of days in the 3rd week which was about one week early from my last period. I am unsure if I should start my new pack, or just get off the pill? Is it normal that my period is longer than one week on Tri-Sprintec?