First month temping and im a little confused. Any help would be wonderful!

Christine
I had what I think we're positive OPK tests the last two days, cd 9 and 10. The test line was as dark as the control. I keep expecting to see a spike in my temp, but they just keep getting lower. I've taken all my temps at the same time every day except for my second temp I took that's one later then normal. What are your thoughts on my chart?