How many water bottles is enough for daily water intake for a pregnant lady?

Gabriela • First time mom. 23. Due 06.26.17
I Am trying to keep track of my daily water intake. 
I am drinking a water bottle that is 16.8 Fl OZ, how many would I have to drink a day to be getting all the water I need. 
I just want to make sure I am staying healthy since I'm pregnant and having cramps. 
Thanks!