Redit doesn't allow me to post.. only as a comment..so I am posting it here.

After studying Sheela na gig statues on various old churche. My conclusion is that sheela na gig has nothing to do with the power of the goddess of fertility but more with pedo.. because all the statues have big heads and little bodies with no sign of breasts..breast are very symbolic in the goddess of fertility. Why the breasts absent in all the female sheela na gig statues, and its important to highlight that only babies have heads that are almost bigger then there bodies.

This statue represents more the body of a baby then of a adult woman fertility figure..

I don't know how to add a picture here of Sheela na gig. But if you Google you will see.