I took 4 pills with 12 hours apart of combined birth control pills (Levonogestrel and ethinyl estradiol) as a EC pill in the end of my period, I started bleeding again after a week for 5 days. After that I started spotting on and off for the past week, my period is due anytime this week. Spotting has some clots brownish-purple color. Im very concerned, Could I be pregnant? I have taken 4 tests already its all neg, its been 20 days since I had intercourse. I know its a very stupid thing to do but I live in a country where EC pills aren't allowed to be sold. So I had to do what i had to do. I also had intercourse while I had my period. Any advice or idea about whether this is a hormonal imbalance or is it implantation bleeding?