How long does it take for the line to get darker? I took a pregnancy test on Tuesday and got a faint positive. Now I keep getting faint positives but none of them are getting darker. Took a urine test at the doctor's and she said it was negative. (Granted it was like my third pee when I went to the doctor, I thought she would have done a blood). I read them all within 3 minutes but not more than 10, and they all are pink....no bleeding, breasts are really sore, slightly crampy.