Hot drinks that are safe in the first trimester?

Googling on the internet has left me confused as there seems to be positives AND negatives for almost every herbal tea ... i feel like the only thing thats safe is water !! Ha ha. I read rooibos tea was great on most sites...but then one site told mr there wasnt much in the way of studies and to avoid it. I guess after having 3 miscarriages i just wsnt to be ultra safe...Whats a girl to drink?