Hey mama! Honestly, mucus plug can look different for different moms kaya mahirap i-describe, pero kung may pink/brownish tinge or jelly-like consistency with a bit ng bleeding, that's usually a sign na malapit na talaga! Best talaga na i-check mo agad with your OB para ma-confirm, especially since you're FTM at mahirap malaman kung paano talaga ang hitsura niya if first time mo pa lang, wag mag-alala, they've seen it all naman! Keep track ng other signs like contractions or cramping, at kung may heavy bleeding na parang period, go to the hospital na right away ha.