Im confused

Hi! So AF usually lasts a solid 6 days. This month I was hoping to be pregnant and AF was due on the 1st of Feb. Well on the first I had light pink spotting (I have NEVER spotted before a period, I normally just full on get my period). So I had spotting on the first and then the 2nd I had my period (or what I thought) it lasted the 2nd and half way through the 3rd. So only a day and a half. But now, I have like brown spotting when I wipe & that's it. Any ideas? Please help!