Progesterone levels day 21

Destany

Is 5.7 progesterone too Low to become pregnant?? I took clomid days 3-7 and got my test done on the 21st-22nd day and my number came back as 5.7 the first time i ever got it, it was .01 then the second month it was 6.2 and now 5.7 but the first month i did 5-9 and the last two times i did days 3-7 so i’m just not sure .. my doctor is out until Tuesday so i haven’t gotten the chance to talk to her yet. I’ve heard 10 and above is good but also heard anything about 3 is good too. I’ve also heard your numbers can drop depending on when you test vs when you actually ovulate so i’m just so confused. Someone please help give me some insight please.