I normally buy cheapies, ordered some last night and used my last one today to find I could see the faintest line! My next lot of cheapies won't be here until next week and I'm wanting to retest in the next couple days (I have a birthday party at the weekend so want a definite answer before that!). Please tell me if you know the best ones or even the sensitivity of tests, I'll be buying sometime today! Here's a pic of my recent test, tell me what you think!