It is possible that you may experience some or none of the Tri-Norinyl side effects listed in this article. Unfortunately, it can be difficult to tell whether any particular side effect (such as nausea) is caused by Tri-Norinyl or other factors. Therefore, make sure to let your healthcare provider know if you develop any side effects while taking Tri-Norinyl, or if something "just does not seem right." While it may not be a side effect of the contraceptive, your healthcare provider will be able to diagnose and treat the problem.