False positive?

Shelley • 👨🏻🤰🏻🌈👧🏻👼🏻👼🏻🐶🐶🐶🐱 Currently pregnant with my rainbow baby boy, after a loss at 10 weeks 2 days and a second loss at 17 weeks.

Has anyone had a false positive pregnancy test result while taking phenergan? I read that it can cause false positive results but it didn’t say how common it is. Thank you.