help ! Spotting.

I spotted 4 days before my period was due. The next day my period started which it never comes early! I is always on time or a day off. First time it was ever early. Well my period has been done for about 2 weeks. THE last few times I went to the rest room I had very light pink spotting. Only when I wiped me with toilet paper. Its not on my underwear . So I'm confused. I've never spotted before or even after my period. Should I see my doctor. or has anyone on here had this happen & causes ??