My pregnancy test was faded!?

So i took a test i always get my AF on the 6th of each month this month she still hasnt come. I took the test on saturday. Everyone says it looks abd sounds as if i am pregnant the positive line didnt show up the negatie line showed up dark a few minutes later the pos line showed up a but it was very faint I dont know if i should take this as a good thing or be ready to be dissappointed what do you think