BFP or BFN???

Lindsay
So my period is a month late. I have taken 3 home test and the positive comes up after it say not to read the results. I went to the doctor today and they said they did 2 test and both were negative. They want me to come back in a week if my period still hasn't started. I just don't know what to think any more. I'm starting to get discouraged. Please Help!!!