Help! Is this HCG normal at 5weeks?

Joy

So i got my BFP on the 4th of Jan, and yesterday did a bloodtest to confirm Pregnancy and hcg level. They just called me now from hospital. According to the nurse ”You are very pregnant.” She said My hcg is ”almost 20k”. I asked what it was exactly and she said 19,880. And I’m just 5w4 according to Glow. Hospital calculated 5 weeks. Is this hcg level normal please? I’m 37. Is hcg leveld age related?