Hi, i have been on birth control for about a year and a half, i am sexually active but 75 percent of the time we use condoms to and whether we are using condoms or not he pulls out. I am supposed to start my period today and the pst 3 months or so my period has been very regular. i took my first sugar pill last night and so i figured i would start today... i have absolutely no pregnancy signs i feel great! Should i be worried?