On day 46 of my cycle. No period

Sam

On Sept 28th I miscarried at 5 weeks. I bleed for 4 days. I am now on day 46 of my cycle. Minor cramping and gassy(tmi sorry). I have taken 3 hpt and all negative. My average cycle days are about 33 days. Any suggestions? I actually have a doctor appointment tomorrow to run test why I keep misscaring as this is my 3rd one with 1 successful pregnancy.