Worried about spotting

My husband and I have been trying to conceive (TTC) since about January.  For the past two months, I've started spotting about 6-8 DPO.  It is very light, and last month, my period eventually came.  Now this month, on 8 DPO, I have started spotting again.  Last month I was hopeful that it was implantation bleeding, but like I said, my period came, so now I'm just so worried about this spotting, and why it is occurring. When the spotting begins, my temps stay elevated, so I don't believe it's a luteal phase defect, as my temps stay elevated after ovulation for 11-12 days.

My doctor won't even see me until I've been TTC for a year, but I know that a person shouldn't spot so soon after ovulation, so I'm not feeling hopeful about conceiving on my own.  

Do you have any advice? Or any reasons why this spotting is occurring? I know it's hard (impossible) to diagnose people via the internet, but could you give me suggestions on what tests to ask for when I do see my doctor?
Thanks.

[John Kim, M.D.]

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