In order to determine whether you’re still ovulating:
Use a urine luteinizing hormone test to determine if you are experiencing ovulation.
If you do not get a positive test but you still believe you are ovulating, ask your doctor to test your progesterone levels roughly 7 days after your ovulation to test; a progesterone level at or over 5 ng/ml indicates ovulation, which means that the GnRHa is not working to suppress your ovulation and associated hormone flux. If this is the case, the doctor may wish to try a different GnRHa.