I just went to the ER & they says my HCG is 853 and they think it could be possible miscarriage so they want me to come back in a couple days to see if my hcg has risen... I am only 4 weeks & 4 days. I have moderate cramps, been having them for almost two weeks now. But no heavy flow. Nothing abnormal today on my test results. Has anyone experience any low HCG beta during their 4th week.