Anyone else?

I'm 37 weeks 3 days and yesterday I seen my ob she said my amniotic fluid felt fine and the baby was still a little high. Today I go in for the ultrasound and babys weight and the specialist I see said it was at 7.2 and if it gets to 5 or under it's dangerous.. they did the test to see if my water broke it was negative they said I wasnt dehydrated but I needed to drink atleast 1 gallon of water a day til Thursday to see if it progressed. They also said the baby went from 5 lbs 16 oz last week to 5 lbs 12oz this week and my dilation went from 3 last week to a 1 yesterday to today considered still closed .... I'm not sure if anyone else has gone through this but advice would be appreciated!