AF was due on 1/1/16!

Erica
Hey ladies,
So I had my iud taken out of the 24th. We started trying on Christmas. I had some spotting for a day or two after, which I know is normal.  My AF was due 1/1/16 it hasn't started yet as of today. Not sure if I should test or just wait it out. I know it could take time for my cycles to straighten out since I stopped my BC. Advice??