I need a covid test. i am 12 weeks pregnant and am a teacher. my gynecologist said i must go for test but i need referral. i have very sore throat, diaree and nausea?

This is the HT public information site where docs, primarily in the USA answer health questions. You are welcome to post questions about health problems, but we don't treat or provide referral documents. We have no access to or information about your local healthcare options around the world where this site is seen. Contact a local provider for such questions.

Your GP should be able to coordinate locally testing and further follow up. Quarantine is critical and make sure you inform the school as well so that they can also provide logistic help.