Sounds like this thing.
The new moon, April 5, will fall in the most private part of your chart, the 12th house, ruling your subconscious mind, your dreams, and your most personal goals. This part of the chart rules secrets too, so it's the time where you decide to begin under-the-radar work on certain endeavors, ones that require a lot of solitude and thinking. In ancient times, the 12th house was thought to be akin to the primordial waters of creation, so as you see, the very first germination of an idea could easily begin now.
In each case, if you do start something new now, you probably won't be ready to talk to others just yet about what you're doing. Your plan isn't fully formed yet, so it is understandable that you would need to keep it under wraps. You may want to do more investigation, tinker with the idea a bit more to shape it, or imagine a few different ways of approaching the idea to see which one seems best.
Huh. Also, huh?
Mars has been zooming through your ninth house since last month, opening you up to interesting new ideas and concepts, both intellectual and spiritual in nature. You seem to be dealing with people at a distance, possibly in international settings. The people you are mixing with seem to be distinguished in some way - some may be ambassadors, diplomats, professors, journalists, publishers, TV producers, movie moguls, or artistic creative types - each in their own way very stimulating.