I'm also a bit confused... Did you mean to say that your husband never had the post tests done to check for sperm count? I have seen cases of men holding their sperm count for as long as 9 months after the procedure so it is entirely possible that he could still be virile... If you are normally regular with your cycle, I would start off with a simple pregnancy test to see... If negative, try again in a couple of weeks... If still negative and you still have not gotten your period, see a doctor as it could be an infection or something more serious...
Hope this helps! Good luck!