Cd23 and spotting... HELP WHAT IS HAPPENING!!

So some history. I’m 43 in a week or so and we are trying for #2. I started going to a Clinic back in sept to monitor my ovulation. October ended up with a miscarriage. Spring forward to now, we have stopped going to the fert clinic cuz of the stress. I’m in the middle of my ovulation cycle and started spotting a few days ago, very light. Today you would think it was a period but I don’t know. Period or implant/ovulation bleeding? I’m sad and heart broken. Can anyone shed some light on this. I’m starting to loose hope that we will have another baby. 😥