4 periods in 7 weeks

I had been taking birth control for over a month and a half. I had my period for a week on the week I was supposed to for the birth control. Two weeks later i missed a day and hooked up with my boyfriend. When I realized the next day that I missed it I took plan B. Then two days after I took the Plan B I started bleeding for 10 days. I stopped bleeding  then only a week later I got my scheduled period again. Then it stopped. A week and a half after it stopped I got my period again. The period lasted a week. Then it stopped and I just got another period another week and a half later. I don't know whats going on but I have a period when the birth control says I should, then I have had one in between for a total of four periods in about 6-7 weeks. It wont stop and I am schedules to get my period according to the birth control in a week. Im starting to feel sick to my stomach and all I want to do is sleep. I have been crying a lot and I do not feel in control of my emotions. I am assuming my hormones are out of balance but I do not know what to do.

[busybee247]

oh and I got a migrane (migraine) last week and started puking for the first time in years. I have been under stress too but I dont know if this is all a result of it