Originally Posted by
cosmosis
My SMU test showed up MUCH faster and was a bit darker than my SMU one. For me, it makes most sense to do it this way because FMU still includes the night before's drinks and body fluids. Think of it like a water pipe. When you open the faucet, you are getting water that has been sitting there a while. You'd have to let it run a bit to get new water. Make sense?
My afternoon urine was actually the most concentrated today because I went without water all day pretty much. I'm catching up now and so my morning urine will be diluted. I got myself in a bad cycle because of the OPK's.