No. Not at all. In fact, this is one of the unique features of 3NCRYPT3D.

 

Unless you decide to tell them, no one will know that you have messages prepared to be delivered until something actually happens to you.

 

Both the recipients of your messages and the people you have defined as Delivery Trigger Agents will only be aware of this in the event that you become inactive for an extended period of time, called HeartBeat.