Do you feel pain and go more often too? Sounds like it could be a urinary tract infection. You will need to see a doctor and get antibiotics to clear this up if that's the case. They don't go away on their own and will only get more and more uncomfortable.
i agree...where is the blood coming from?? is it when you wipe?? or does your urine actually have blood in it?? if its not your period...it could be lots of things, bladder, kidney, uti?? usually these need diagnosed by dr...like someone said it will only get more uncomfortable if you wait...good luck kel
But if you're not having excruciating pain, the kind that is so bad that you are physically unable to do anything, then it's probably not kidney stones. I've had them and the pain is literally the most intense and unbearable pain of anything you'll ever feel in your entire life. You will feel like you're literally dying.
I still think it's your period. Or possibly a UTI but most likely it's your period.