Amniotic fluid

I’m 37 weeks & 3 days yesterday I just got tested for amniotic fluid leak at my 37 week appointment and it was negative so I’m not sure if this is fluid leaking. At 12am I had sex after I peed then went to bed naked in the middle of the night at 4 am I felt something come out like discharge I felt it and it had no smell what’s so ever then when I got up at 5am it leaked on both of my legs which freaked me out. I never had this happen before to me idk what it could had been. Does anyone know ?