Stop PictureBox Moving On Screen At Certain Point

I have a picturebox that is moving across the screen. At the moment I want it too stop at a certain point until a button that is called next is pressed. I then want the picture box to carry on moving across the screen (The total number of times I want this to happen is 5)

Dim nextcommand As Integer = 7
Dim rewindcommand As Integer = 7
Dim x As Integer = 144
Dim y As Integer = 44
Private Sub NextButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles NextButton.Click
[Code] .....