TMI Vagina question

☮️Dani💟🏹 • Hii baby #2 due 8.5.2017! . I'm a proud mommy of my two year old son. Can't wait to see all our bellys grow!
I'm 17 weeks preggers and husband and I have a hard time with sex because the inside of my vagina seems to be coated with extremely thick sticky discharge, it's not white but more of a clear milky. It causes so much friction we can't even finish vaginally. Not a yeast infection had plenty to know this isn't one. Any one else experiencing this and could tell me what might be going on? Any advice is appreciated thanks💕