Ok three points oestrogen makes it harder for a man to fertilise an egg apparently so she is probably safe in this respect- i doubt her sperm count will be affected
secondly pregnant cows put oestrogen into their milk so it is present in cows milk as well
Thirdly
Soya milk has long been regarded as the healthy alternative for those who are intolerant to lactose – the sugar found in cow’s milk.
Research has also trumpeted its many other health benefits. These include the ability of soya-based products to lower blood cholesterol levels, helping it protect the heart.
Soya contains isoflavones, which are anti-oxidants thought to protect the walls of arteries from damage from harmful chemicals called free radicals.
It also contains a phytochemical substance called geinstein that is thought to inhibit the formation of blood vessels that assist in the growth of small tumours. It is for this reason that some studies have linked the consumption of soya milk to cancer prevention.
Read more: http://www.dailymail.co.uk/health/article-329013/All-need-know-milk.html#ixzz1mNCE6ntD
almond milk is much nicer and if you think soya milk tastes like white water then dont try rice milk