Leaking urine vs fluid

I have noticed a significant amount of "fluid" on my panties over the last few days.

I am a ftm and I'm wondering if anyone has any tips on deciphering whether it is just urine leakage or amniotic fluid.

I put a panty liner on earlier and I laid down for about 30 mins and then sat up. I felt a small flow of liquid and I checked the liner. The liquid was clear-slightly yellow and it partially smelled of urine and partially of something sweet?

It wasn't a whole lot of liquid but enough to be there.

I'm 27+1 and I don't have an appointment til august 8.

Just wondering if anyone has had success identifying on their own before rushing to the ER.