Conflicting signs

Okay, so I'm 13 DPO, 3 days later than my latest period (I'm pretty regular), have a crazy abundance of white creamy CM, super low, super soft position (still can't figure out how to tell open vs closed) but my BBT plummeted by .7F this morning. Anyone else have that before a BFP?
Haven't tested in a couple days, first one was BFN 3 days ago. If AF doesn't come today (which is what I'm dreading with the BBT dive and mild cramping I've got), I'm testing again tomorrow. 
Fertility specialist first appt was yesterday, hopefully just acknowledging needing help was a karmic sign that we were ready, lol.