Have you taken progesterone to start cycle?

Brooke • Infertility journey. TTC #1

My dr prescribed me progesterone to help regulate my 43+ day cycles. She has only given me one month worth and said thats all i will need. I cant find much info on this so im curious if any of you were prescribed it to regulate your cycle and took it for one month and had good results? It seems like you’d need it monthly if your body isn’t producing enough? Any info is welcome though! Thanks! 😊