try eating a banana before you even get out of bed, if its morning sickness this should help. good luck
I agree with the above poster. If you are having severe symptoms then you should definitely be positive by then as there has to be enough HCg in the blood to cause them...
If your test is negative, still go see a doctor if you do not see any positive changes in your symptoms
If these symptoms are pregnancy-related then you should get a positive result on a HPT by now (even if you havent missed your period).
Your symptoms warrant a visit to the doctor to find out what is going on.