Amniotic fluid or pee???? HELP??

Krystin • Im 19 happily married with our first baby boy due in april!
Okay so i just got up and noticed my pants were soaked but it didnt smell like pee it smelt sweetish...and im just worried!!! Could i be leaking amniotic fluid!? Please! Ive thought i had braxon hick my tummy gets hard but dosent hurt im 25 w 3 d and first time pregnant please respond how do i tell the difference?