Stopped early

Kacey
So normally my periods last about 4-5 days. I got it 3/8 and today on 3/10 it's stopped. I am taking birth control and have been since freshman year (I am now a junior) However, I recently had to switch bc because I wasn't getting a period. I've been on this new BC for about 2 months now. Do any of you think this is concerning? Please please please give your opinions.