traces of protein in urine?

okay the past month ive gone to my dr 2 times, had protein in my urine (they said traces) but nothing else.. even though i felt like i had a UTI my dr said it didnt show up.. he has taken 2 dif urine cultures to the lab and i am going back on the 30th.

so far they make me go every 2 weeks to keep checking it out..

i dont have swelling thats noticeable, and no super high bp, its usually 140/80 or 142/72

I am 35 weeks tomorrow..

Dr scheduled my csection on Jan 18th [38.5 wks] as early as the hospital would let him in fear of me going into labor early. (this will be 4th csection) even told the hospital i have chronic hypertension JUST so they would let him do the csection half a week early.

i was wondering if any other moms out there have ever experienced this?