I got a positive on a clearblue. I then did a pink test on a store brand and got a bfn. ?

It is much easier to get a false negative than a false positive. If you read the Clear Blue test when you were supposed to (and not too early or too late) then you are probably pregnant. Also, some tests are better than others. You get what you pay for. If the other "pink tests" were cheapers ones, it's possible that they don't detect the hCG levels as well as the Clear Blue. Chances are, if you take another pink test in a couple of days it will be positive too. Good luck to you!