Oral Provera

Moon

Hi I was put on Oral Provera and the first month it worked. The second month i didn’t get anything. I literally spotted on and off but not red blood like a typical period oncoming. It was light colored like pink and some light brown. I’ve been aching in the legs and feet and breast. Is this like a normal thing with oral Provera? Like it works sometimes and sometimes it don’t? I tested negative btw it’s possible i tested too early and it’s possible im one of those women who won’t get a positive til later. My body is very odd..