Hi and welcome! So you had a blood test done...what was the result?
As for the meds you are taking, keep in mind that plenty of women don't know that they're pregnant for the first couple of weeks and keep right on taking medicine, smoking, drinking, etc. It's not ideal but it happens and quite often, the baby is fine. The important thing is you are formulating a plan with your OB to weigh the benefits of the drugs vs. the dangers. You are doing all that you can do in that regard. Beyond that, I would just suggest taking good care of yourself in every other aspect. Eat right, try not to stress, take your prenatals, etc.
I know it's hard, but try not to worry. I bet everything will be fine.