Avoid the numbers 3, 6 and 7 with plastics, since they leech into your food/water the most. The PET bottles for most water are probably okay. It’s not like tap water isn’t full of crap… I’m not sure how great Tupperware is, but definitely avoid heating it in the microwave.
Oestrogens are literally everywhere. Birth control pills are made from soot extracts because there are hundreds of oestrogenic compounds that can be isolated and patented, so pollution is another issue. Pesticides are oestrogenic too, and most cosmetics are full of oestrogenic compounds. A lot of vegetables have phytoestrogens in smaller amounts, especially crucifers (cabbage, sprouts etc), but again cooking them is enough to reduce them.
Apparently the soot oestrogen patents expire soon, so it’ll be interesting to see how society’s view of the “female hormone” changes over the next decade or so.