Thanks for your query.
Firstly, you did have unprotected intercourse
, and then took the emergency contraceptive pill
too late, at almost 72 hours.
So chances of pregnancy
are definitely there.
bleeding occurs almost a week before the expected period, is not like a normal bleed, is light, almost like spotting and sometimes accompanied by some kind of pain or lower abdominal discomfort
You cannot rely on these symptoms alone to diagnose whether it is implantation bleeding or not.
You will have to wait till the bleeding stops and then around the date of your expected period, take a pregnancy test, or better still, consult a gynecologist.
Meanwhile do adhere to some preferred form of birth control