new to NBE and scared about messing up my hormones

for about 2 months i've been reading and reading about NBE and also took single herbs in small quantitys for about a month each time. although they gave me a lil pain and fullness that only lasted while i was taking them, i'm considering tring again and for real this time. i also ordered brava from ebay ( if it doesn't work at least i payed way less for it).

anyway my concern is this. phitoestrogens are supose to balance the estrogen level so we can gain now what we haven't gained during puberty. so basicly we will face an increased level of estrogen. did any of you girls take any blood tests or at least seen a doctor to make sure you won't mess up ur systems over the years? playing with hormones is a tricky game and i'm afraid of the long-term side effects old style birth control pills used to have such as facial hair etc.
i'm on the pill too so before i start i'll go see my doctor and run some tests and talk about this. but i'm curious if anybody else has and what the results were especially after months of taking herbs.

thanks and best of luck to you all