Aw mama, first time moms are usually worried sa ganitong concerns kaya totally understandable! Hindi ako personally naexperience yan pero I have two close mum friends na may low amniotic fluid during pregnancy, both were closely monitored ng OB nila with frequent ultrasounds kaya lahat ended up okay sa kanila. Pero honestly, this really needs your doctor's attention ASAP since you're already at 33 weeks, they'll check kung gaano kalala at what steps to take, whether it's more frequent checkups, hydration, or other measures depending sa case mo. Stay calm muna and schedule an appointment agad if hindi pa checked recently, okay? Keep us posted, we're rooting for you and baby!