I have two questions about herpes, please can you help me?

Please can you tell me how accurate the herpes urine test is for a woman? If you have herpes, would it definitly produce a positive result?

I have had the urine test and it came back negative, however it was not 'first catch' urine, it was from the middle of the urine stream. Does this mean that my sample would be no good and that the result was unreliable?

I am so worried about this and would like to put it to rest if possible. Thankyou