I need to ask what might be going on with me. I noticed that I had a little blood in my urine and when I urinated it burned when I started but that sensation goes away as I am peeing. I don't have any discharge or anything abnormal before this. What could be wrond and do I need to see a doctor?

Yes... it could be anything from a uti to an std . In either case it most likely will hurt worse until you get it checked out.

When I urinate it hurts a lot.my vagina releases bloo.2 days ago we had sex and right after that I'm feeling and noticing this pain.why this is happining.I never had this problem before.help me.