So I just started NuvaRing a little over 21 days ago (I just removed it to expect my period) and I'm supposed to be on my period. I do have the symptoms, bloating , irritability, cramping, nausea, cravings , etc. But my period is SIGNIFICANTLY lighter than usual and a little earlier. It came the day after I took it out. How common is this? I didn't know if it took effect right away or what