Progesterone stories

I go in Friday to have my progesterone levels checked. What should I expect? Last month I had a chemical pregnancy, took a test and got a positive the next day I was already bleeding heavy with negative tests. It’s like my body can get pregnant but can’t keep it, that was my second chemical. I hope we find out Friday if it’s my progesterone that’s low so we can make things happen! If you’ve taken progesterone can you share your story?