My boyfriend ejaculated on, not in, my butt and Im not sure if it dripped down to my vagina.  I am on tricyclen and missed the day before of taking the pill.  I am currently on ciprofloxacin and metronidazole, flagyl antibiotics and know that this affects birth control.  I washed the area with water and a wash cloth after.  Is there a chance of pregnancy? If so what can I do to prevent this?
Hello dairy understand your concernThere is chance of the pregnancy as you missed the tablet, and you are taking metronidazole. Metronidazole increases the metabolism of the pill in the liver and decrease the circulating hormone. Because of above reason, there may be chance of the pregnancy in your case. I would suggest to use barrier contraception for next 7 days. Make habit to take pill everyday on regular time by putting reminder in the mobile. Avoid stress, take healthy diet and do regular exercise. Hope this may help noncontact Chat Doctor for further health query Best regards