Hai. I'm 22. I am worried about my menstruation. Please give me advice. Since I was in grade 6 until 4th year college I had a normal menstruation. It will always come every month. Until time comes i have my boyfriend. We had our sex without protection. From that my menstruation became not normal. I experienced 3 months bleeding and I consulted a doctor. She let me undergone different test. And all are negative especially the pregnancy test it was negative. She let me buy the pills Diana and I take it. After 10 days my menstruation stol. And then I stop taking the pills given by the OB.. It become not normal again.. I had my menstruation last August 22 and it stop August 30. MY menstruation come back again last September 1 and stop October 4.. Then we had our sex with my boyfriend without protection. We never experience having a sex with protection. Sad to say after how many days I have my menstruation again last October 19 until now it didn't stop. Please help me!