Spider with her Egg Sac

This small spider is fascinating. The body length is only about 6 mm. She has striped legs and tiny eyes on a little bump on the head. Her abdomen is triangular with a prominent black, spiny organ in the center of the abdomen.
She was in a large loose web in the corner of the garden wall and was carrying her egg sac in her mouth. She has two palpi which are like spiky dark fingers for carrying her eggs. You can see the little developing spiders in some of the eggs.