so after my AM BM i wiped and there is blood tinged mucus. i don't recall this with any of my others. i remember a giant bloody glob (bloody show and plug) with my third. and i remember with my prom baby how the waters were pinkish. but that's all the pre-labor blood stories i have to go off of. is it a true sign of impending labor or is it just something that can happen anytime(hours, days, weeks) before labor onset.