Early Period

Caitie
Hey ladies,
I'm just curious, I've always been one to get my period every month, pretty regularly. 4 months ago I stopped hormonal birth control all together and since then my period has been starting on the dot the exact day glow predicts it. Today, I got my period and it was basically a week early. I've NEVER had a period come early before. Is this normal?? It's heavy bleeding and cramping just like usual just super early. Thoughts?