I Used An Emergency Contraceptive Pill Twice The Previous Month.

I used an emergency contraceptive pill twice the previous month. This month I had my periods 2-3 days before they were supposed to occur and had only had bleeding for 2 days or less. The bleeding was also not very heavy. I have never had spotting before but am really confused if I had a period or just spotting. I am really concerned. Is it possible that I am pregnant?