Progestrone?

Hi ladies, I went in yesterday for CD 21 progestrone levels, which for me was only 5 DPO. The results came. Sick as 23.56. The doctor said I definitely ovulated. However I'm just curious with the not being at 7 DPO what could this mean? I take clomid CD 5-9. My other question is can a progestrone test tell if you have a chance of pregnancy this cycle? I'm just trying to get my mind to quit thinking so much.