Ay, 39 weeks na kayo, exciting times! Pero para sure kung mucus plug na yan o normal discharge lang, kailangan talaga i-check ng doctor mo directly, lalo na since may tigas at nawawala, only she can tell for sure based on ano nakikita niya.
Kung bigla ka nang may heavy bleeding, intense cramping, or pakiramdam mo talaga na something's different (like wala ka nang ganap na contraction pattern but feeling mo ready na), don't wait, go to your OB or hospital na agad, okay? Otherwise, i-mention mo lang sa next check-up mo or message your OB now kung worry ka. Kaya mo yan!