TMI sorry. but need opinions

i need some opinions. so saturday morning i had a large mucus discharge which most likely could of been my mucus plug, i am 32 almost 33 weeks pregnant with twins. so i called the on call dr to see what they wanted to do and they saod if i had no pain or blood then everything is fine. however the mucus discharge now changed to a clear discharge almost as if you were sick and had a runny nose and you blew it, like that. im just so worried something is wrong. anyone else have this?