I have a rather long and complicated question.... My last period was 26/01/05 - 01/02/05. I had sex the night before my period began (25/01/05). 3 days after my period had finished, i had some very light pink/brown bleeding which lasted for 4 days. I had no pain, just headaches. We don't use birth control &i t's never happened before. Could i be pregnant even though i had my period before this spotting? I'm very confused. I did a test last week & it was negative. My next period is due next tues. Could it be too early???? I'm 25yo.