Hello i'm latoska and right now I am trying to figure out if I am pregnant. I started my birth control (the patch) 3 weeks ago from the day I put it on I had sex with my boyfriend. I took it off on sat and had sex. The box said that you are to use back up for 3 weeks b/c it's not in your system. I started my period yesterday but it's irregular to me. I have all the symptoms urination, breast tenderness and enlargment and tired...In the past when I have taken pills I have bled and bled for a week once and I was 1 month pregnant. If you can help me I would like to hear what you have to say and look forward to meeting you all. By the way I have a 2 year old daughter.