What's wrong with me?

I honestly don't know what's going on with me. My last 2 cycles I started spotting on cd24, then af started 3 to 4 days after. I'm usually every 29 days. This month I'm on cd31 right now and have been spotting brown for a few days only when wiping. So pretty much I've been having brown discharge instead of my period. I'm 32 ttc2 for 18 months. Got pregnant after 10 months but had a natural miscarriage at 6 weeks. This was my first month using Clomid and I'm testing negative.