This is normal, really. A few fluctuations are common. This is because of our given varying natures. You don't have anything to worry about. I came on the back of a miscarriage. I was really sad, of course. However, I had a successful procedure. The only thing worrying for me was the TWW. That stuff is really hard, you know! I hated it, so much. I'm glad it worked out in the end. Good luck to you, as well. I hope you don't have to wait too much for your first one. Try to keep your mind off it. I know it's easier said than done, but that's the best I can give you!