Yes you can. You have to let the tcm know that you are pregnant so that the herbs are pregnancy safe. The tcm should know. I personally went for a tcm that specializes in pregnancy, pre and post partum. (Madam Partum) and the herbal soups I am drinking are generic, safe for pregnancy, for nourishing purposes. The tcm also told me that my body is heaty, explained what I could and could not eat, what to avoid totally and what can be taken moderately.
Can take an tai yao if you are comfortable