Wishing I could just relax

I had a tubal reversal in July, and my husband and I waited the recommended time before beginning to try. This is our third cycle, and I'm at 7dpo. My chart looks incredible, and all month long I've just been easy going, having fun with my husband and feeling really good about the whole experience. (this is the first month I haven't been filled with anxiety about whether or not my tubes healed correctly or whatever) So now, this morning, my temp dropped WAY low, which is positive. It's downright exhilarating, or should be, because it's the perfect day for an implantation dip. But now I'm all of a sudden back to being absolutely convinced that I'm not pregnant. If you asked me yesterday I would have said "I have a really good feeling about this month", but today, even with the excellent, encouraging chart, I am just filled with dread. Why?!?!?! I know that at this point last month, I flat lined at 98.2, and I've been up around 98.6 since I O'd, until this morning when I had my big dip down. Now I have to wait and hope that tomorrow morning I make a huge comeback. I think I'm going to pull my hair out wondering! I just wish I could find a little bit of my old tranquility again. . . God knows, I need it back. . . .