I am currently on Tri-Cyclen Lo and have been for about 8 months. The last 2 cycles I have gotten my period on the 3rd week of the pill (while I am still taking it) and then it ends before the week I am "supposed" to get my period...so for a whole week I have no period and I am not taking any birth control. Does this mean that this pill is too low in hormones for me?