Just left the ER and......

So on December 17, 2018 I went to the ER because I started bleeding and it worries me since I found out a few days before I was pregnant. They told me In the Er that day that my hCG level was 30.35 and I would probably be a miscarriage. I just let the ER and they did blood work because I have been bleeding since December 17 2018 and hasn’t stop or lightened up. Well my HCg levels are now 436.19. Anyone got advice??