Can you try a really good hold 4/5 hours with no water? I know it's tough, but I literally had to test when my wee was orange ( sorry tmi) in the beginning or else it was barely there on some tests. I've had chemicals so I honestly totally get what you're going through; it's torture but you still have positives which is a good sign and 3 days' really isn't that long. Try to hold and test at same time so you can get a true comparison. My chemical and MC had way stronger lines than I had this time, but they were negative after 3 days'; I know everyone's different though, but I think you still have time on your side. Lots of love xxx