Hi mama, Yes! The body is using lots of fluids while growing baby so this is natural. Do drink up!!! Helps with the amniotic fluid levels for baby too! This article provides a great explanation: https://www.google.com.sg/amp/s/www.thebump.com/a/excessive-thirst-during-pregnancy/amp
Oh yes! I drank lots of water when I was in my 2nd & 3rd trimester. Do drink up. And no you got it wrong, drinking lots of water does not cause water retention BUT not drinking enough water will cause it. Weather is also humid so do keep yourself well hydrated ok ☺️