The November 2017 New Moon in Scorpio occurs at 6:42 AM EST on Saturday, November 18th, which is when the Moon also goes void-of-course (a not uncommon occurrence). The Moon then enters Sagittarius at 1:59 PM that same day. The good news is that the Moon is in Scorpio all day Friday November 17th, and it enters Scorpio at 3:19 AM on Thursday November 16th, so it will essentially be in Scorpio for two full days. This information is also detailed in my Cosmic Concerns: November 2017 post if you’d like to see this information as a list.
What this means is that you can do your New Moon ritual after 3:19 AM on the 16th (shouldn’t be too hard since I hope you’ll be sleeping then), or any time on the 17th.
The two week manifestation point for this New Moon is on Sunday, December 3rd with the Full Moon in Gemini. This also happens to be when Mercury goes Retrograde in Sagittarius, oh goody gumdrops. The six month manifestation point is on Sunday, April 29th 2018 with the Full Moon in Scorpio.
My guide, Witch’s Guide to New Moon Magick, can be found on the site here; this post is a companion to that guide. If you’re new to Moon magick that’s a great place to begin.