Hello Doc. I Am 28 Yr Old. I Am Facing

hello doc. i am 28 yr old. i am facing irregularity in mesuration cycle sice they have started. last year i havnt got my perion for 3 months after which i took regeterone for 5 days. . n i got my periods within 10 days. for the next one and haff periods were regular but meanwhile i suffered from adenofibronema in left brest which was removed surgically. but after surgery the cycle was again irregular along with increase in body weight. my ultrasound thyroid sugar prolactin all reports are normal. i m afraid of having adenofibrinema again.doctor has prescribed me yamini for 3 months. should i take it or not? does it have any sideeffect in long-term in concieving as m not married yet ?