If you are experiencing heavy bleeding after being diagnosed with a blood clot due to your contraceptive pill, it is important to consult a doctor, especially if the bleeding lasts for more than 7 days. Taking medication to thin the blood can make menstrual bleeding more fluid and heavier. It is normal for your period to last 5 to 7 days, but abruptly stopping your pill may complicate things. Be prepared for potentially challenging months ahead as your body adjusts to changes in medication.