I had unprotected sex during a fertile time, and took the next choice EC after 72 hours (80hrs after) and the second pill 18 hours after (instead of the 12hrs) I was suppose to start my period 3/14 but had brown spotting early in the morning and then this (3/15) morning a little bit of red/pink spotting and that was it for the rest of the day. Is this normal because of the next choice? Or could I be pregnant?