Progesterone and hcg levels

I had a D&C in December due to a blighted ovum at 5 weeks, my progesterone was 14 and my hcg was 27,000. I am now 4 weeks 5days pregnant and seeing a different progesterone is 9.4 and hcg is 310. Midwife doesn't seem to be worried. I am so confused. Has anyone else had levels like mine at this stage?