in pregnancy urinary tract infection
to be treated carefully as it can lead to pyelonephritis
debris usually indicate problem at the level of higher part of the tract, debris could be because of white blood cells, pathogenic organisms or bleeding in the upper part of the tract etc,
any how as at present your hcg levels are normal,
you take treatment for urinary tract infection, and go for scan after one week possibly by that time you may see the fetal pole
after complete treatment of urinary tract infection your symptoms could subside.