Advise on how to tell fiancé and or is it to soon?

Jessica
Tomorrow is my Birthday, and my fiancè are going out to eat. Today i took a test and it was a Vfl i am retesting in the morning! My question is should i tell him tomorrow (depending on how tomorrow's test goes) an how! Or should i wait? Im nervous this is a false positive
The test! This was within 10 mins