It has been uncomfortable to pee and when i wipe there are hints of blood on the tissue. not due for period for 3 weeks. what could this be?

Vaginitis?: Based what you stated, vaginal infection should be considered. Of course, how you practice your sexual intercourse needs to be considered also. Such as using accessories and potential weird roughness. If any doubt, see an expert. Meanwhile, start collecting the features of the onset, degree, duration, and interval of the events to report to the consultant. Best luck.