Do I Need To Continue Using Primolut-N To Get My Period, Or Is There Another Solution For My Cycle Irregularity?

Hello. Good morning Sometime last year, I didn’t see my period for 6 months, I went to see a gynee and he prescribed primolut N for 3 months to induce my period. I used it and I got periods in that 3 months. After I stopped using the drug, my period stopped too. Am I supposed to keep using Primolut N to get my period?