protein in urine during 34th week of pregnancy

hi
i am in 34th week of pregnancy .i already have pcod problem,but throughout my pregnancy i went for regular checkup,everything was fine with me as well as fetus.but now i am having protein in my urine (1+) which i checked in 33rd week.and i took antibiotic as per doctor instruction (azythromycin) for one week .after that we checked again at that time also protein (2+) was found in urine but leucocytes was reduced from 3+ to 1+ .Blood sugar was normal.blood pressure is also somewat high (140/90)...................now i am taking alkasim syrup with water (sodium acid citrate syrup)...............s it so serious .wat is the range of protein in urine during pregnancy................pls tell me about my condition .is it the symptom of preeclampsia .pls help me ............thanks