Let us know how you are doing and what the doctor says. :-)
"Experts don't always know what causes low amniotic fluid. Oligohydramnios is more commonly identified in summer months so may be due to maternal dehydration. It has been found that drinking plenty of water will boost levels of amniotic fluid so it would be worthwhile keeping your liquid intake up. You'll also want to take care to eat well and rest.

There are other causes of oligohydramnios, each of which requires its own treatment. Here are some of the most common causes and how they're managed:

Leaky or ruptured membranes
You may have a small tear in the membranes, allowing amniotic fluid to leak out. This can happen at any point in your pregnancy although it's more common as you approach your due date. You may notice the leaking fluid yourself if you find that your underwear is wet, or your doctor or midwife may discover it during an examination. Ruptured membranes can increase the risk of infection for both you and your baby because it provides a way for bacteria to enter the uterus. Occasionally, a tear will heal on its own, the leaking will stop, and the fluid will return to normal. (This is usually the case if the leaking happens after an amniocentesis.) Otherwise, your doctor will need to monitor for signs of infection for the rest of your pregnancy. As long as there are no signs of infection and all is well, you'll be able to continue with your pregnancy as normal."
(from http://www.babycentre.co.uk/pregnancy/complications/oligohydramnios/)