Thanks for your query.Based on the facts that you have posted it appears that you have sustained trivial injury to your urethra
due to vigorous sex resulting in to getting mild hematuria
Please take broad spectrum antibiotics along with anti inflammatory medication like Diclofenac
twice daily .
Get the prescription of medicines from your family Physician.
Ensure to drink more water.To keep your urine dilute This will help to control dysuria.
Avoid sexual encounter till it gets cured completely.