Low Amnio

I had a doc. appointment today and learned that I was 1 cm dilated and 50% effaced... It is nice to know that my body is doing it's job and getting ready for delivery. My entire pregnancy has been very normal and average (as far as the measurements go) until this morning where my tummy measured smaller than normal. My belly measured 36" last week, was supposed to measure 37 this week but was only 33 cm... pretty big difference.. I had mentioned to the doctor that my belly felt smaller this week than it did last week and not as firm which is an unusual complaint when you are 37 weeks pregnant!! She decided to send me to the ultrasound room to check on my fluid levels and his size and sure enough my amniotic fluid is on the low-normal range at 5.69 cm [The normal range is from 5cm-25cm]. She also mentioned that he is actually a "smaller baby" with the estimated weight being around 5lbs 12oz. (I wasn't super surprised since I have hardly gained any weight in these last 3 weeks - but I sure did pack it on in the beginning of the pregnancy!) The ultrasound tech said that it was a good sign that he was proportional and that he had a strong heartrate of 145 bpm and his blood pressure and mine were both normal. I'm trying to drink extra water to help with the fluid levels and maybe even eat a little extra this week to fatten this boy up a little before my ultrasound next Wednesday... In the meantime please say a prayer that he is healthy.