I undergo d & c. After 14 days I started bleeding, so started taking primolut-n once daily. After 18 days while taking medicine I was spotting again, so took 2 tablets per day upto 23 day. (had intercourse on 14 day but he did not come in me but precum). After 2 days of stopping the medication I had 2 days of spotting dark brown in colour. Now its been around 10 days and no periods yet. I checked for pregnancy 4 days ago, it was negative. What might be the reason? I have increase in my weight since I started taking primolut. I am taking methylfolate around 950 mcg per day. I was taking medicines of flu, cough in last month and was also taking medicine for an injury on hand. What could be wrong with me? I am also having bad throat and flu right now. Please help.