Gastro in pregnancy

Jess • Been with the love of my love for almost 8 years, married 17/08/19 baby boy 💙 👶 05/10/2019 baby boy 💙👶 April 2022 baby girl 🩷🧒 March 2024

I’m 18 weeks 5 days I’ve come down with gastro, first time having it while pregnant. Can anyone offer any advice?