Pregnant? I hate the hospital

Okay yall I have been to the doctor twice now. The first was cuz a yeast infection nd now I have a uti. They gave me a pregnancy test for both but they both said negative. Now I have been nauseous for four days nd they told me i dnt have the flu because I threw up today. My temp spiked earlier so I came to the hospital. They say nothing is wrong with me besides the uti. I still think I am pregnant because there are too many signs. Nd i still feel nauseous as well.