The control line for thc is always fainter than the T-line. I have taken home tests before and even using just plain water the control line has come out faint. Like the test states if you can see a line it is a negative result. Sounds like you are good to go, but stop excercizing and relax up to the test date. Follow the dilution sticky and drink gatorade instead of water. Make sure you piss midstream for the test. If you are still worried about the test quickfix has a 100% success rate as long as the temperature is right. As far as the faint line goes if you can photograph it or xerox it, it is a negative result. I was taking home tests for 2 straight weeks before my test and the line was faint everyday. I passed with flying colors. Good Luck.