I need your advice!

Okay so about 9 this morning I had a small amount of bright blood...I am 7 weeks 2 days pregnant today. I immediately went to the doctor and they did a blood draw to check my hcg levels and my progesterone, they said everything looked good but my hcg levels were a little high for when my last period was,  I was just curious if anyone else had experienced anything like this with their levels being elevated this early on? I go for an ultrasound Monday to check the baby but I'm just curious as to what that can mean? Any advice or opinions would be greatly appreciated...I'm a first time mommy and worried about my baby!