Hello, I appreciate your query. M2 Tone is an Ayurvedic medicine, which is generally given for a vast variety of menstrual problems. Generally, this medicine is not known to affect the bleeding pattern. However, if it is interfering with your menstrual cycles, you should report it to the doctor who prescribed it, and stop it too. You said that you have missed your period and this is your second week of being overdue. Generally, if you are pregnant, the Urine Pregnancy Test comes out positive in the first week itself, as early as the first day of the missed period. However, since you have already done it once on the 5th day of the missed period, I would now advise you to visit a gynaecologist for an internal check up, and also go for an Ultrasound at the earliest which will confirm or rule out a pregnancy for sure. No other method is completely reliable. If you are not pregnant, your practitioner will rule out other causes of your absence of periods, which may range from weight gain, to PCOD ( polycystic ovarian disease ) , hypothyroidism, stress or any other issue. Hence, please go for Ultrasound and check up at the earliest. Hope this helped you.