Bbt drop and cm changes

First, let me be the first to say that I obsess about small things as I'm desperate to be pregnant. Don't we all!
​Here's  my question:  I had a my bbt drop at 5dpo. 7dpo Having creamy/watery cm increase. Don't seem to have anything else but mild cramps (could be anything) and body pain. But, I have rheumatoid arthritis. So any body pain of fatigue is normal for me. Am I dreaming? Could this be a good sign? I'm going to test at 10-13dpo. I know, it's early but I'm so anxious! Thanks, ladies