Round 1 of 5mg of Letrazole - got blood work done on cycle day 21

My bloodwork from my previous cycle (pre Letrazole) showed .13 progesterone level. This cycle, I did 5mg of Letrazole CD 3-7 and progesterone was up to  6.7 at CD 22. Doctor said we made a good jump but she would rather see it at 10-15 so I am going up to 7.5mg of Letrazole next cycle and I guess I'll be (im)patiently waiting on AF until then 🤷🏼‍♀️. Anyone else have success after increasing Letrazole dosage?