Hi i am not sure what pregnancy tea is for as there are too many brands out there claiming to do a lot but if u have a healthy balance diet and/or taking supplements that ur gyne is giving u then u don't need these actually. some gyne will give more supplements some give lesser but it is best to just take it from the normal foods as all these are somewhat heaty in nature. as for lactation teas....like all things that claim to be lactation aiding, it depends on the mother's body and everyone is different. has effect on some and none on others. for foods to boost ur milk supply u can google. there is a long list and then u have to try for urself which ones work for u. to make matters more complicated, ur milk booster for this time may not be the same milk booster for the next baby. our bodies are really a big mystery