Provera question

Lynn
My husband and I were supposed to start TTC again starting this month. 
I have PCOS and it's been making things difficult. I missed a period late fall and had to go on provera. Got AF on 12/1. Supposed to get AF on 12/30 but it never came. Went on Provera again on 1/5. I've been on provera a couple of times before and normally AF arrives day 10 or 11 after the first pill. I am currently at day 14 and no sign of AF. No symptoms, no spotting...I also checked my CP and I am high and closed. 
In December the hubby and I fooled around on the 24th and 30th. I had a blood test on the 5th which was negative. 
Could I be pregnant? 
I know it can take two weeks for AF to show up after your last pill but this is driving me nuts!