Someone please tell me what's up with this

Ladies!! Please help. I'm 4 days late. No BFP. No AF. I'm known to be irregular. I've had tons of clear cm every single day. Almost like how it is after you BD. Like his sperm coming out. Okay I'm sorry, TMI. But what is this? It's like clear and kind of sticky. It's been this way almost my entire cycle. And I always have TONS in the am. Anyone? And if I'm not having periods, does this mean I'm not fertile?! I'm just staring OPKs so I know that will help but this morning after another BFN, I'm feeling discouraged and extremely sad. Just one of those mornings..: