HELP AND PLEASE READ!

So yesterday I went to ER because the night before I had light pink blood. So, it went away that night. But, the next day it continue. I totally was freaking out because I had miscarriage before when I was in school and that how it started off only that it happen at day and over the next. But this it come and it goes. But now the blood is red. So basically the hospital told me that they wanted me to come back in two days to check my HCG levels. He basically said that I was so early on and that if my level up that was good and if my levels went down that meant I was having a miscarriage so I’m hoping someone one here had a story and or went threw same then had a baby. Cause I know I heard some really crazy and miracle story of something and I hope pray my baby lives!!!! I pray because I want this baby so bad and I’m so scared for tomorrow to come so please anyone can help I would really appreciate you so much!