1 positive test and 1 negative test confused!!

[xrachb87x]

Hi, I took a test on Sunday at 1:30pm n it looked like a very faint positive, so I then took one on Monday mornbig but it was negative, I've left it a few days, im gna get a few more tests n test again, I was just wondering if this has happened to anyone and it turned.out they were pregnant? Also can anyone give me any answers as to why it wud happen? Thx x x

 

[awaitingrmb]

blue dyes? pink dyes? also how many dpo are you? some tests are more sensitive than others.