3DPO super thick CM

RT

Anyone get this and get a BFP?

I've always been dry as a wheat thin after ovulation. Today it fell out of my privates practically I was like is this an early period and when I wiped boom it was gross!

Q: what are pre destined dotted lines on my chart? Is that what they call a coverline? So my temp shouldn't drop below that line or...

( I'm new to temping, this is my first month)