Drinking frizzy drinks in pregnancy

Hi

I would like to know if it’s very bad to drink frizzy drinks during pregnancy . I m in my very early days of pregnancy and I like to drink some no suagr added frizzy drinks like 1 cup a day but I have heard it’s not good to drink sprite or coke or any frizzy drink as it’s not good for baby’s health . Can you plz help me as I m very confused

Also I hav about 2 cups of tea during the day

Thank you 🙏🏻