Drug testing devices only test for drug metabolites and have no ability to determine pregnancy. A seperate test designed for such purpose must be utilized to determine pregnancy. And its illegal for pregnancy tests to be run on a sample without the donors written authorization. For more details, read post #34 (paying particular attention to the closing paragragh) in this thread: http://boards.cannabis.com/drug-test...delines-2.html


With all that being stated, any human sample can be used for a sub as long as the sub donor is indeed drug-free and not overhydrated.