I'm 39 years old and just started taking Lo Loestrin Fe in December 2011. I had a normal period in December and January. The problem is 8 days after my January period ended I started another period. Is this just my body adjusting to BCP or should I contact my Doctor?

Thank you for you help

It is never wrong to contact your doctor, esp if he did not tell you this could or would happen.
While yes I do believe it is just your body adjusting to the new medication, It is always the correct thing to keep your doctor in the loop.