Opinions please!!:)

Okay so I have never done this before! I've been ttc since oct '13 and of course every month go crazy researching, hoping that this is the month! This month though I definitely can tell there is a difference. First about 11 dpo I started cramping and figured af was coming soon, never came:) I'm still cramping almost a week later with no af. Also there has been a major increase in cm, like more than when I'm ovulating and I'm constantly running to make sure no af. Then yesterday I had horrible lightheadness and constantly felt like the room was spinning until I ate something and it helped a little bit. My breasts never are tender, ever! And yesterday I could hardly touch them! Af was supposed to show up yesterday according to glow but still nothing:) I've taken four hpt, two dollar tree and two cvs brands and all negative, one taken this morning with fmu:( honestly I feel like I am but I know it's possible for it all to be in my head, so I was wondering what do you guys think? I really hope I am!:D