you will also get can and cannot answers here.. so, for me, if some say cannot, i will just stay away. Better be safe than sorry. Some people even say can drink coconut water in first trimester or they eat raw salmon throughout their pregnancy, so... really..i only have to say better be safe than sorry.
Best to check with Gynae :) what I know is barley is cooling so not sure if body can take it in first trimester.
I drank once in a while when outside at coffee shops. But rarely
can, moderation