What Causes Delayed Periods With HPT Results Negative?

Hi I'm now 17 days late I'm 25 I have taken 6 hpt all negative. I have been exhausted more then normal today a little nausea peeing a little kore run regular and when I tested again with a hpt today I noticed my pee in the cup was very cloudy. I have no idea what's wrong and it's very hard to get a dr appointment were I live.