Hi, I m taking Qlaira for 3 months already, just finished the third month , I took the two red pills when usually the period starts and nothing happened, I had all the simptoms, like pain, cramps and lower back pain but period didn t started. Now I m taking the white ones . Just want to say that since I start Qlaira I was bleeding between periods every month in the 14 th , 15th day ... Do you thinks this can make the pills no efficient or could I be pregnant? I don t know why the period is not on. I have headaches for 3 days since the period should start... :(