No, there is never supposed to be blood in your ejaculate, which contains sperm. If you have blood in the discharge, this indicates an internal tear, internal bleeding, or an infection. See a doctor.
There are no possibilities of blood in the sperm. The colour of sperm of certain people will look like blood stain when it is seen in dry condition in clothes.
No!!!. There should not be blood in your sperm. You should go to a doctor as soon as possible and tell him about this and get some tests taken. Probably a simple blood test will be able to tell the doctor what is causing the problem. Do not procrastinate on this one.