Are the effects of the pill or can I be pregnant?

I did 2 times this month with my boyfriend and I took the pill the next day 2 times, I was very scared. The strange thing was that as a contraceptive tome, my menses came on the right day only that it came a little light brown, then it became reddish and then brown again. Are the effects of the pill or can I be pregnant ?! Thank you if you answer =)
Expert answer:

If you take contraception, why take the morning-after pill? It does not make any sense. How are you going to get pregnant if you take contraception? A minor change in your period is not a sign of pregnancy.