HCG levels dropped and doctors prescribed me progesterone.

Hello, I know it’s most likely not going to work but I had my HCG levels checked on Monday they was 49.2 on Wednesday they dropped to 48.0 because my progesterone is low 8.14 I would be able 5 weeks. My doctor wants me to come in for more blood work on Monday and an ultrasound on Tuesday. He started me on progesterone today. Any stories like mine that had success? I believe once they drop then there is no hope right or am I wrong? I’m not cramping or bleeding