Well i am not tested positive yet but i have symptoms similar to period cramps..my doc has advised me to wait till my periods are missed..now my question is i have been drinking green tea daily about 3 glasses will that cause any problem?since pregnancy is calculated from last LMP which was 17th jan so if at all m pregnant it shud b 3 weeks pregnant as of now so the consumption of green tea i did will it effect in any way?Really worried before even starting and getting tested positive this is bothering cz i heard if cause spina bifida