Soooooo I found out today what could have been causing my faint lines...my new medication that I started a few weeks ago and discontinued because of ill side effects. I never thought it would pick up from a Medicine but I was wrong! Just a friendly note if you are on any kind of medicine I recommend calling your local pharmacy and basking the pharmacist or your dr if it could cause a false positive! Thought I had a chemical pregnancy, still oddly enough haven’t started yet but I’m just late I guess! Now that I’m not taking the meds the tests are negative!