You will probably miss a complete cycle before your normal period returns. It will likely adjust over time. Rarely, the remaining ovary doesn't regain normal function. If you don't start your period next month, call your gyn and he may be able to give you some medication to help things get back to normal. Best wishes on continued healing!
Shelly
Surgery can mess with your cycle and delay or bring on your period. Maybe speak with your GP for a post surgery checkup.