is this right??

Okay! I took a test yesterday night, it said negative but I swear I saw the faintest of the faintest line when I took it, I talked myself out of it, and threw it away. Sooo, something told me today, to get it out of the trash, which I've done before with other tests in the past and they still are negative. Well tonight, I pulled it out and there is a faint line, that I can defiantly see tonight! Is this right?!?!