I wouldn't trust urinating on Dandelion leaves(if you can find some right now) Another one says to stir urine into a glass of pine-sol and see if there is a color change(OK) The last one said something about bleach, but I stopped reading b-cuz the homemade pregnancy tests ALL said at the end of the paragraph "you MAY/MIGHT be pregnant" The store bought tests seem to be the best way to go. I mean you are after all talking about the REST of your life, why leave it to chance and voodoo??
When I 1st read this question, I assumed you meant "at home" pregnancy tests. I didn't even know that there was things you could do at home ( with flowers or whatever) to test for pregnancy, however, upon reading Naftas answer it seems there is things like that & I will now have to say.. Pay the $10 for a proper test as I don't think those things would work, sounds like old wives tales :) good luck, I hope you get the answer you're looking for either way. Btw.. the ones you buy at the pharmacy do work.