Get Rigidbody Velocity

I am using:

rb.position += someVelocity * Time.deltaTime  

to set the velocity.
I think this the reason for rigidbody.velocity not returning the x component.
So, is there a way to compute it?

Turns out I am just dumb. I am setting the velocity then trying to compute it.

The answer is to add the velocity I am setting with the gravitational forces acting on it which is rigidbody.velocity(.y). Since I need only the x component and the x and y displacements are independent in particle motion, I only need someVelocity.x.