31 days ..no af yet

My longest cycle was 34 days and that was a while ago. I'm going on 31 and the last few months back, my period cycle was 27-28 days...I dint have much symptoms expect a few days ago I had very very slight cramps and I thought at was coming but I subsided. I had a big increase of lotion cm around 10dpo...it was been a lot less as the days go by. Do you ladies think I have a good chance? I try not to get my hopes up but it's exciting.. I have a physical with a blood test 12/2...and I'll test again the day before (I had 2 bfn's) ...I don't want to know if I'm preggo at the doctor because my hubby will be there and I want the surprise to be more intimate