Could i be pregnant or is it a false positive?

i took a HTP on Saturday night it was a cvs brand blue dye test. i have pcos so i take one every once in a while sense i don't have a regular cycle. i waited about a min after taking it and the control blue line came up but nothing in the the other circle except a very extremely faint line that i thought i had tricked my self into see(im still not sure if it was really there) so i figured not pregnant and through it aside(like i said i have pcos so i figured i wasn't pregnant and wasn't to concerned). about an hour later i went to go to the bathroom and noticed the faint line was a more visible but again it was still very faint so i asked my fiance to look at it and he said he could see it but that it was very faint. sense then i have taken a second cvs test and on answer test for being inconclusive because not even the control line showed up. im going to retest but i don't know what to think. i haven't felt sick or have sore the only thing i have noticed is my sense of smell is very increased, i have been having a hard time sleeping (could be do to stress but its been going on for a few weeks) and i have been going to the bathroom more(could be because its summer and i have been drinking more) and i have been slightly constipated. sorry its so long i just wanted to give all the details all comments are greatly appreciated!!!