A star is not called anything specific before it's born. It's more accurate to say that a star goes through several stages before it reaches the point where we would call it a star.

Here's the process:

1. Giant Molecular Cloud: The starting point is a huge cloud of gas and dust called a giant molecular cloud.

2. Protostar: Within the cloud, gravity pulls material together, forming a dense core. This core heats up, and the object becomes a protostar. This is where we start seeing the beginnings of a star, but it's not quite a star yet.

3. T Tauri Star: As the protostar continues to grow, it becomes a T Tauri star. This phase is characterized by strong winds and variability in brightness.

4. Main Sequence Star: Finally, the core of the T Tauri star becomes hot enough for nuclear fusion to start. At this point, it becomes a main sequence star, like our Sun.

So, rather than having a specific name before it's a star, it goes through various phases, each with its own characteristics.