Today was my second placebo pill of my first pack of birth control pills. I am taking Generess Fe, and on the website/instructions in the package, the description says this pill is a chewable tablet. This is the first thing that worries me- since I am chewing it and not swallowing it whole like a pill, is Generess Fe less effective? Also, the instructions say that if you start your pack on the first day of your period, you can use it as your main form of contraception after 7 days. So, I waited until I took my 20th pill (last Friday, July 1st) to have sex for the first time without a condom. One of the reasons I went on the pill was to regulate my period, but now my problem is that tomorrow will be my third placebo pill and I still don't have my period. Could I be pregnant or could it be that my body isn't used to the pill? Should I be worried? Should I still start my second pack this Sunday after these placebo pills even if I still don't get my period before then? Thanks very much!!