Weird cycle this month..

My husband and I have been trying to concieve for almost a year now. We have gotten pregnant twice in the 4 years we have been together, but both times resulted in miscarriage. The last miscarriage was last July. I have picots, so my cycles aren't exact month to month, but this last cycle was 42 days long. I had a very light period. On day 15 of my cycle, though, I started spotting, leading right up to aunt flow yet again, for the second time this month. I have an appointment with my hump next month, I was just wondering if anyone else had a similar experience?