Air kencing kotor

Dah 3x checkup air kencing kotor..detect protein..pdahal minum air kosong byk dah..cmne nak buat lg supaya air kencing kmbali clear mcm sblm² ni??nak tau gak apa punca bole jadinye air kencing kotor ni?ada sesiapa penah mengalami?Oh btw,sy dh 33mggu pregnant..