Worried, drank hibiscus tea by accident

Called doctor about how nausea I was, and they made a lot of suggestions but one was to get lemon ginger tea, well I bought some at the store and have had two cups of it today. I decided to look on the back of the box because it was makimg me feel better and I wanted to see what was in it, well one of the ingredients is hibiscus flower. After looking it up I'm really freaking out, it says its a big no no and could cause miscarriages. I'm 7 weeks and 1 day should I be worried...?