PERIOD

So this is my case, lately, I have been drinking my pills irregularly bc I sometimes forget. I don't know if this is its direct cause but also recently, my first few days of period have been spotting only with very minimal amount of blood. So i resorted to drinking I dosages of Ascorbic. A day after my period flow became normal, but then I noticed it became a lot clotty, with really huge chunks of  blood. What does this mean? Did I have a miscarriage or is this all normal? 😬