Any advice anyone? Please answer?

So I'm due for my period in a week, usually when I do an ovulation test just for kicks it's negative of course but this is almost positive? I've heard that if your pregnant the second line stays dark? I'm going to buy some more pregnancy tests tonight but I just thought I would ask anyone if they have any thoughts? I had a blood test at the doctors last week for hormones and it came back normal but they wanted to test a second time, but wouldn't tell me why? Could I be pregnant? I feel as tho I am!