###Human: What is the possibility of potential ectopic pregnancy while on contraceptive pills? ###Assistant: Hello. You have to know that contraceptive pills will prevent a future pregnancy if you have taken the pills for seven days. After that, you can have unprotected sexual intercourse. So before that you have to use another form of contraception. Also, if you have had sexual intercourse not in your ovulatory day (that means at first day of your cycle), the possibility of a pregnancy is low. The urinary test has a high acurracy, if you perform that after a week of menstrual delay. I read that you have experienced a rupture ectopic pregnancy last year. The typical symptoms of an ectopic pregnancy are missed period, abdominal pain, cramps, and spotting. I recommend you a b-HCG (human chorionic gonadotropin) blood test. You can repeat that every 48 hours to detect a future pregnancy. It will double its value in an intrauterine pregnancy, meanwhile, the rise of b-HCG value in an ectopic pregnancy has another pattern less than a normal pregnancy. Also, the COC and the medication that you take can affect your cycle. I would recommend b-HCG blood test at first. If you have the bleeding within your expected date without delay, it would be your cycle that has come.