S.L.
Hey,
I have had my left one pierced for years. It didn't hurt that bad when I got it done but was a little sore afterwards for a few days. I took it out with both pregnancies and breast fed with my first with no problems. The hole did stay there when it was removed for a few monthes and easily went back in. Your nipples do not stay erect. Infact I don't even know it's there anymore. Hope that helps and good luck.