TMI.... advice pls

Hey, so this is my first time posting on here. This is something personal (and trust me I have used Google to try to help me out... but no luck.)

But this is worrying me, I’m currently on vacation, just for a week. I had my period earlier this month all ready. But approx 2 days ago, after I finished peeing it was hurting like crazy. And this is happening every single time I am peeing. It is still going on. BUT not only that, I’m bleeding a little bit. It’s only a very small amount. I’m going home in 5 days so I’ll head to the doctor then, but can anyone help me out on what this is, what I can do for this for the time being and (not trying to say it like this) what is wrong with me?!?!