I am 36 and a half weeks pregnant. For the last week and a half I been having yellowish globby discharge normally only when I wipe however yesterday there was some stuck to my underwear that was very hard to remove, Stuck on like glue. Is it possible that this is the mucus plug? I have tightening of the stomach with this as well and know when I am going to see it when I wipe. If I don't have any tightening I never see it.