I been on birth control for a 2 months now. And been having 2 periods each month..is there something wrong or what..n i havent been having sex...the last time I had sex was to weeks ago. And i also missed taking a pill 4 days ago and havent taking it yet because i'm scared to take 2 pills at once. but i really need this question answered...What is the reason for two periods in one month?