Bright red blood?!

I'm currently 31 weeks and 5 days pregnant. This past Monday, I had a pelvic exam at my scheduled appointment, so I know that spotting can be normal. Yesterday, when I had light pink/ brown blood in clear discharge, I figured it's normal and went on with my day. This morning, I started cramping  a bit and went to the restroom to pee, but when I whiped (3 or 4 times) there was a good amount of bright red blood on the tissue paper! I imediatly thought to call my doctor, but it's the weekend and I'm currently on vacation away from home. Has anyone experienced this situation that can give me some helpful information until I can get home tomorrow and call my doctor ? Thanks.