How many days did you have a faint line for?

Amber

Hey ladies, how many days did you have a faint line pregnancy test? This is day 3 for me and although they seem to be getting darker they are still faint! I've tried different brands and all are faint! I went in yesterday for hcg blood work and it was 15 so very early.....I go back tomorrow so I'm hoping the numbers have doubled!!!!