Slow rising HCG and

Lauren

Had an US at 8 weeks by LMP. Tech said baby was measuring 6 weeks but had a heartbeat and “strong fetal pole” dr sent me for two HCG levels. First was 28805 and 4 days later only rose to 28921. I thought it would have doubled by now and I’m not convinced than ever that I’m miscarrying. I’ve had no cramping or bleeding. If it weren’t for that early dating US I would be none the wiser.... Anyone been through this and had a positive outcome?? I need some hope...