It doesn't make you go into labor. Its supposed to help thin your cervix ( efface) and potentially help reduce tearing during delivery.
Yes, it doesn't make you go into labor, primrose is mainly used for ripening the cervix and can be used to prevent/reduce tearing.
Ohh I see! Well I guess that makes sense. I was told I have a nice and soft cervix but 0 cm dialated
I inserted vaginally from 36+ but it never made me dilate, only soften up