I'll echo exactly what xandoz says. Give it at least four weeks to clear the system 5 to 6 is even better.
There's a lot contrasting opinions on this given that although Anavar and Primobolan are testosterone deriratives, they're not actually testosterone per se. So unless the laboratory is testing for metabolites of these drugs (very unlikely) then it shouldn't really alter the expected readings of a normal therapy blood measure. Some would venture to say that also, because Anavar and Primo are both supressive to a mild and differing extent, that it might actually decrease the Total Testosterone or Free Testosterone measurement, based on the therapeutic doseage. I think the jury is out on this to be honest due to a lack of scientific studies to show evidence or trending either way.
I'd err on the side of caution though, and re-establish your normal routine 4-6 weeks out from testing. I'm in a very similar situation to yourself but I'm on Winnie and Sustanon 250 and expecting a call for testing any day now.
Good luck brother, and please tell us how it all went. Knowledge is power guys, and your information ccm66 will be valuable - acnedotally at least - to other forum members, myself included.
Cheers.
Craig