Blood in your urine is never normal, and it is important to see a doctor as soon as possible if that is happening to you.
If you mean blood is coming out of your vagina again, like a period, then the big question is are you sexually active? If you have had sex, and there is a possibility you could be pregnant, you might want to take a pregnancy test. Do you have pain on one side?
If you are not sure where the blood is coming from, put in a tampon. If when you pee there is no blood, and the tampon has blood you will know what is going on. Even if you wear a pad you can tell, because blood in your urine would not get on the pad.
If the bleeding has stopped, and there is no way you are pregnant, then I would see what happens the next couple of months. If it keeps happening see your doctor.