Mucus plug

Jasmine

4 days ago I lost a good pieces of my mucus plug. It had bloody streaks and was very thick. Stayed like that for about 2 days then yesterday and this morning I noticed its more of a pale yellow/white color but still thick. My question is, could this still be my mucus plug or is it discharge. I'm 39 weeks today and have been 4cm dilated, 100% effaced and in station 0. If that helps at all lol