So I didn't go for my shot June 7th. I had gotten a period literally every month while on it for 9 months. My last period way may. The last two week I've had pink spotting off an on with some cramps but no steady period. Has anyone else experienced anything like this? I've taken a test and it was negative. I've read that it can take a year for you're period to come back I just don't understand why I had it the whole time I was on it but as soon as I get off it's gone.