HCG at 28 on 14 DPO

Getting really discouraged, I had a miscarriage back in November around 7 weeks. Finally thought this is my rainbow baby but I’m worried about my HCG only being at 28 I’m going back tomorrow to see if it doubled in 48 hours but can’t help but to prepare myself for he worst. 😢 did anyone else have this low of HCG in the beginning?