Going insane...

So AF is now 6 days late, and I'm about 19dpo. Woke up this morning with sore boobs, feeling sick and I'm still peeing for Britain. Took another pregnancy test and its still a bfn.

It feels like someone is playing a cruel joke on me. I feel so down and fed up. I can't stop crying, and I don't know if it's down to hormones or because I'm just so emotionally exhausted.

I'm starting to wonder if this just isn't meant to be.

Any advice would be greatly appreciated right now. Has anyone else been through this?