You are carrying 11 wk pregnancy
,presenting with blood in urine.
Your scan report and urine test is WNL. So don't be much worried.
It may be mild spotting mixed with urine and you unnoticed that.
Drink plenty of water/fluids,empty bladder in time,maintain personal hygiene.
Do periodic check up and consult with your doctor if anything happens again.
,take healthy protein rich diet,adequate rest with folic acid