Need some reassurance

So I took letrozole for over a year and progestrone test always showed it was hit or miss for me . Some months I ovulated and some months I didnt . My pregnancies have always miscarried .. anyways I started taken clomid 100mg days 5-9 for the first time since 2016 . Yesterday on day 21 of my cycle but 4-5dpo because I ovulated on cd 16-17 , I had a progestrone levels test & my number was only 12.00 . I’m scared that’s not good enough for a medicated cycle at 4-5dpo .. I’ve read a lot of womens post say their results were upwards of 30++ . Soo is 12.00 a good number for 4-5dpo?