NaNo posts on my Facebook or Twitter feeds, I've thought of you, dear writers, and wished you luck.
We're halfway through the month, if you can believe it! That means you should have about 25,000 words.
If you do, great! That's wonderful! Keep it up!
If you don't, don't worry! Keep writing! You can do it!
Remember that NaNoWriMo is about proving to yourself you can make the time to write. You don't have to prove to anyone else, and it's not a contest. Whether you end the month with 50,000 words or 50 words, you'll have more words on December 1st than you did on October 31st, and that's an accomplishment!
If you're finding yourself slowing down or getting stuck, there are lots of things you can do to jump-start your writing. The folks at NaNoWriMo have been posting prompts on Twitter frequently (for example, add a bottle of vodka to your story with bonus points if one of your characters drinks it). Or jump to another part of the story.
Whatever else you do, just keep writing, one word at a time. You're doing great! Keep it up!