I just started taking Kariva. I am now on the second week of pills. I just happened to be going on vacation the week my period was due, so my doctor said I could immediately start taking the pills instead of waiting until my period started. Everything has been fine until today, I am now almost finished with my 2nd week of pills and noticed today my stomach was cramping a bit. As the day went on my cramps got worse and now I am having some light bleeding and it's been a brownish color. I'm just wondering if I just post-poned my period and its coming now or if this is break through bleeding? I've never been on bc before and I thought you were supposed to have a period during your last week of pills. But I'm not sure if that would be different since I pretty much skipped my last period. Any advice/help would be greatly appreciated!