When can I start drinking Pregnancy Tea?
Congrats! I'm not familiar with the Traditional Medicine tea specifically; however, I see no reason why you should not drink pregnancy tea other than financial. For example, I didn't really start drinking Red Raspberry Leaf tea until the start of my 3rd trimester because I just wasn't feeling tea and the medicinal benefits are strongest in the later parts of pregnancy.
That's not to say that RRL wouldn't have been good to drink early on, even pre-pregnancy. I just found out about it late and didn't really want anything other than milk and grape juice during for like 3 months :)
My midwives were ok with me starting at 16 weeks with just one cup a day. You can go more frequent and stronger in the third trimester but I am not sure on the specifics. What does your care-provider think? There is a very very long thread on this forum somewhere. We really need a sticky or something though!