Ok. I am really not sure what is going on. I am fairly new to b...

Ok. I am really not sure what is going on. I am fairly new to birth control and Loestrin. I am taking birth control for my fibroids. I have been taking it at the same time every night (Except for last night...I forgot to take them) and I noticed earlier today that I am about to start my period, but I am still in 3rd week of the white pills. This is really crazy and I am not sure why I am getting my period in the 3rd week and I never know how long this will last. This is my second month on Loestrin and I thought that I would get my period during the brown pill days. Can anyone please explain... I have no clue what is going on with my period right now.