Hi, Thanks for posting in HCM. I understand your concern. Micropil Plus is a low-dose oral contraceptive pill. Since you are taking it regularly as per the schedule, the chances of you becoming pregnant is remote. Brown discharge what you could be having due to passing of retained blood or endometrial tissue. Kindly continue with the pills as scheduled. In case you do not get your periods, you need to take urine pregnancy test and seek medical attention promptly. Hope the information provided would be helpful. All the best.