Drug test help

I am going to start taking letro for 2 wks then nolva for 2 wks as soon as I get it. I have a meet on October 15. Just to clear this up, my body should be clean of any AS, it has been over it has been seven mths since I was on. I just had some gyno symptoms pop up so I ordered the letro and nolva to hopefully get rid of that(following Bino's guide). They go by a test level of 6:1 and I don't know much about it. I don't even know if nolva and letro show up on the test or if they will effect my levels enough to cause a positive test. I just want to get rid of the gyno and hopefully not fail a test. If anyone can help it would be much appreciated.