How do you know?

lisa • Mom of 1 girl👧, 3 boys👦🧒🧒, twin 👧🧒( born 2/4/20) and one in heaven 👼 #nosanityleft

I have 4 kids but still dont know answer to this....how do you know if you are leaking amniotic fluid? I am 15 weeks with twins and been having cramping lately and two and four weeks ago had some bleeding they couldnt figure out. Now i am having some cramping and having a bit of clear fluid discharge. Somedays its more then others but i have had to change underwear during day because of leaking. I just dont know if this is something i should mention this to doctor or this is normal pregnancy discharge. Im just worried about this pregnancy so much because before this i had a miscarriage, and then the bleeding just added to my worry. Sorry this is so long. Thank you for reading.