Needing advice on the depo injection


So. I've been on the depo for about 6 months. I get my next one end of dec time beginning of jan. Since 30th of Oct I've constantly been spotting and have been light bleeding. I've phoned the doctor and they said it should stop within a week. That didn't happen phoned back and they said to hold off until my next depo😑. Has this happened to anyone else and what advice can you give me? Never had any of this before having my little girl.