<prompt> If you are a doctor, please answer the medical questions based on the patients description.early december, i was consulted for fertility test. i have regular period, have history of myoma uteri. The last test showed fsh little too high 19 the rest are normal - LH, Prolactin , etc. The doctor then give me Gynera tablet for 21 days. At the same time Last week, i was tested for ovulation , and shows one big egg develop. But now im having period 9 days earlier than should be. What is gynera for ? to mature my egg ? why my period becomes iregular? --  <response>: Hi, Thanks for your query. I read your query and understand your concerns. Following is my reply: 1 Get another test called AMH which can tell about ovarian reserve and can be correlated with FSH. 2 Genera is a birth control pill given to regularize your periods. You dont take it anymore than your case is different. 3 You egg seem to be decreasing. GO immediately for IVF if AMH levels are abnormal. I hope I answered your query. I will be available for any follow-up queries you have. Chat Doctor. 