Info on 7dpo progesterone draw?

I have had multiple pregnancy losses each time my progesterone was low and i went on supplements so my dr believes it was low bc the pregnancy was not viable and not vice versa but i wanted to see how it was when i am not pregnant in hopes of getting a better idea 'which cane first the nonviable or the low progesterone' and had progesterone and estradol tested at 7dpo this cycle. My progesterone was 5.4 and waiting on estradol result still so i havent talked to my dr yet, was wondering if anyone here knows what the progesterone should be or if the estradol level makes a difference when paired with it? I have to call my dr when i have both results back so im just wondering if anyone knows in the mean time. I knkw my ob said my progesterone should be at least 10 in the past so i think mine is low but i dont know if that is only after you are pregnant and 5.4 is totally normal for a non-pregnant cycle. I know no one here is a dr and will take everything with a grain of salt but just hoping to discuss a little while i wait to speak to my dr