Leaking amniotic or urine?

For about 1 week now I've had a lot of leakage... If I don't wear a liner I have to change panties halfway through the day. Also I have a lot of pressure low in my pelvis and slight cramping that goes into vaginal area. No bleeding. This is my second child and I talked to the nurse about the pressure and she said it's common. Wondering though if I should I mention te leaking as well?