Am on birth control, 18 years old, and i finished pack as usual, got my new one after i ended my period on a sunday and then took my active monday pill. I proceeded to forget tuesday and wednesdays pills so i decided to just stop taking them until the following week where i would be able to take them routinely. Four days later, i got ANOTHER period, meaning only five days in between. Should i be worried of anemia or anything else?