Sorry you're feeling so lousy right now If it were me, I'd probably go to the ER or a walk-in clinic if you guys have those where you are. I never wait with potential bladder infections because they just get worse so quickly! Plus, if they spread to the kidneys then you're looking at a longer course of antibiotics/more pain etc.
As for your hubby's camping, I know that you really want to go but I'm sure he'd understand if you weren't up to it. UTIs can be very uncomfortable and there's no point in you going camping if you feel like you can't get off the toilet.
Things that I have found have helped in the past is soaking in a warm bath (sometimes all day!) and taking lots of cranberry juice. Even cranberry pills if you can get them can really help.
I wouldn't worry about it being cancer...I'm pretty sure those cancers usually crop up only when you're much older...and I know I often get blood when I get a UTI
Do you get them a lot? Because if you're getting them a lot you may want to ask your doc about interstitial cystitis...it's a bladder condition that can cause frequent UTIs. Here's a good link: http://www.mayoclinic.com/invoke.cfm?id=DS00497