Low progesterone level

My doctor has put me on Letrozole and I had my progesterone level drawn on CD 21 which was Friday and it was 1.05, whereas my level from the month prior was 13.09 which ended with an early MC. Did I have a chance this month, or no? 😕 Also side note, according to my LH surge I did ovulate so I’m just a little bit confused.