is it ok to drink coffee twice a day? breasfeed mom here. there are times that i exceed more than 2?

You can take a look at this article for a gauge of how much is "too much". Basically, it may be different for every individual and you may need to observe your baby's reaction to determine if you are consuming too much. http://kellymom.com/bf/can-i-breastfeed/lifestyle/caffeine/#toomuch Also, do note that caffeine is not only present in coffee, other drinks like tea, and coke and food like chocolate also contains caffeine.