Do you pay for shared paid post?

I have found conflicted info on this online so I am hoping one of you facebook experts know the answer. I have been running FB ads for about six months now and making great money but I am trying to figure out if I still pay per click if someone shares a paid facebook ad.

Not the boosted post but an actual paid ad. So if a user sees the ad and shares it and then someone clicks on the link in the ad will I still be charged by FB?

Yes you'll be charged for it