Could I actually be pregnant?

[Kd2017]

TTC, but have irregular periods on day 50 of cycle so I take a test with mid afternoon, very clear urine and it's positive! So to be sure I went for another wee (even more diluted and did two more tests, and both negative. Now the positive line on the first test has faded! I know I need to wait till tomorrow and test again. But could I be pregnant or is it likely a faulty test? I used standard dip tests from amazon

Always remember false positives are extremely rare so there's definitely hope there. If you have any of them left i'd say try not to drink much more and hold the next wee as long as possible and then give it another go!