You can have up to 300mgs caffeine a day.
1 cup of espresso = 150mg
1 cup of instant coffee = 80mg
1 cup of decaf coffee = 3mg
1 cup of tea = 50mg
1 can of coke = 40mg
1 cup of hot chocolate = 10mg
1 cup of chocolate milk = 5mg
30g of milk chocolate = 5mg
30g of dark chocolate = 20mg
30g of chocolate syrup = 5mg

I usually have a coffee most days, not all, but did avoid during the first trimester.

Sorry, not sure about Sars