Period every 2 weeks!

Hannah
Hey girls, listen ever since stopping my pill 2 months ago im having a period every 2 weeks. 
Sorry if this is discusting but its very heavy and watery and really red, it feels like im weeing myself all the time. The pain is unbearable for the first 4 days i csn barely walk.
I have started taking the pill again as only wanted a resting period, but the periods are still coming please help xx