Bleeding all day???????

This is my first pregnancy and I didn't have any bleeding until I turned 11 weeks.... now 5 days later and I'm still bleeding every now and then throughout the day. It's not anything crazy, but it's also not a dot or two. It'll like I'll wipe after I pee, and the toilet paper is covered in bright RED blood. Or I'll use the restroom and it looks like vessels of red blood are in the toilet.

I'm really terrified! My sister had a miscarriage at 11 weeks... I REALLY hope it isn't that. I have an appointment with my doctor on Thursday and I hope to hear that the baby is okay. Please keep me in your prayers šŸ˜­ did this happen to anyone yet, what is happening???