Hi! I Have Been Taking Minigynon Pills For The Past

Hi! I have been taking minigynon pills for the past 2 years,I missed it for 4 days n then took 5 of the after the four days to catch back up. I begon feeling crops abt a hour after taking them,then my period rush down,its been seven days now I have been bleeding and my cycle usually last for 4 day..is this normal???plz respond doc