I had an appointment today and the PA said I have trace amounts of protein in my urine?

She seemed very inexperienced and nervous like she had just got into the field. I had never had this PA see me at my OBGYN office before. They usually tell me absolutely everything is normal so I was put off when she said that I had a little protein in my urine. She didn't say there was anything wrong with it and just went on to do my measurements. I've done research and it could be from skin cells getting into my cup or much worse like signs of pre-eclampsia or something wrong with my kidneys. Has anyone else experienced this? I was hoping she read the strip wrong lol.. I'm 34 weeks.