Cycle Phases- Progesterone

MC

These are my last 4 cycles. Obviously my follicle phase is too long. My OBG prescribed me progesterone (started yesterday) 3 days after ovulation. Anyone have any luck with this in shortening your cycle/helping you conceive?? Any other tips would be appreciated!

Cycles

1- F phase- 35

L phase- 14

=49

2- F phase-23

L phase- 15

=38

3- F phase- 27

L phase- 17 (chemical)

=44

4- F phase-30

L phase-

=