I don't have my menstruation by almost 1 month.. I make love with my partner last jan.2 but supposedly I will have my mens.on jan. 15 but it was delayed. I had my menstruation on jan. 29, last Sunday of jan. Until feb.2. After we had sex. I feel pain pain in my lower back.. I took several times of PT unfortunately, it was negative... I consult to a doctor about my situation. And she told me that I am suffering a UTI... But she didn't mention that I am pregnant... But before I consult to a doctor, I took a lady pills to help me to have mens. I just to 2 tablets but I just stop it because. I don't feel well. There are side effects that I felt. Like headache, I am emotional, in sensitive to my physical appearance. Is there any effect in my menstruation after I took 2 tablets of pills?