Hello and welcome to Healthcare Magic. Thanks for your query.
It is indeed not safe to take any unapproved medication or supplements of unknown composition during the first trimester of pregnancy
. It is good that you have stopped all such medication / supplements.
Like your doctor has mentioned, it is not possible to assure you 100% that there wouldn't be any side effects, but I would say that you don't have to get very worried or tensed about this. It is very important that you take folic acid
supplements (which will prevent any fetal abnormalities) and go for reular follow-ups with your obstetrician.
Wish you all the best.
Dr. Jonas Sundarakumar