I was on birth control for about 6 months and then stopped it for a month and my period was late. My doctor said that was normal and then I started birth control again and had my period at the right time. 2 weeks after my period, I started bleeding and it has been about 7 days now. According to my birth control pills, I am supposed to start my real period a week from yesterday. I was also on anti biotics that were said to make the pill less affective and last week I missed the Sunday pill and took it on Monday with the Monday pill (so I took 2 pills on Monday). Is my cycle just totally screwed up because of all of this or could I be pregnant?

Most likely your cycle is just trying to get itself regulated. Birth control, in essence starts your period at a certain time of the month, and when you go on and off, there is always an adjustment as your body first tries to regulate itself to starting your period on it's own, then switching back to being regulated by the pill. This can happen for 2-3 months before things go back to "normal". But if you are very worried, you can always take a HPT. Buy a twin pack and take one now, and another one in 2 weeks.