Amniotic fluid or pee leaking?

Michelle • I love cats ♡
I am just worried...I am 20w4d...yes since I been pregnant I have more discharge down there..luekkoria...but today when I sat down I felt a little gush of wetness, to wear it went through my panties to my yoga pants...I went to bathroom and checked to make sure everything was alright. Just discharge was in my vagina, but idk what to look for if it was amniotic fluid...help please