High hcg but no fetal pole 5-6weeks


I had my first ultrasound after my miscarriage in November on Tuesday. They saw a gestational sac and yolk sac, but no fetal pole. The sac measured between 5-6 weeks. They drew blood and my hcg was at 16,000 on Tuesday. Doctor said we should’ve seen a fetal pole with hcg so high. She is still optimistic. I went back today for another blood draw and driving myself crazy waiting for results tomorrow. Has this happened to anyone else and ended up having a healthy pregnancy?