In Appendicitis you will have nausea, vomiting, fever in most of the cases
If you have these symptoms then it is mostly Appendicitis
I need to see USG report once ( status of appendix)
Next Steps
in case you are not able to tolerate the pain better to undergo laparoscopic ovarian cyst removal
if USG showing appendicitis you can undergo both laparoscopic appendectomy + cystectomy in same sitting