Hcg #s????

Amy • 33 with 2 beautiful children! Happily married for 11 years!
I'm so confused! My levels were 20 and positive tuesday after a negative urine test. Today I am bleeding and cramping. My levels were 23. Shouldn't it be going DOWN? fearing the worst. This would be my 4th miscarriage. Last one I was 20 weeks. :-(