Lo Loesterin Fe Question

Hey guys! I have been on Lo Loesterin Fe for literally two weeks now. The other day I had some light bleeding which I figured was normal, but today, I am having bleeding that is heavier than just a liner. I am filling up half a tampon in about two-three hours which I know isn’t much. It still worries me. Has anyone else has a similar problem on Lo Loesterin Fe or any BC for that matter?