Pregnant Women Stepping on Nails

I know many of you probably already read this in Halacha of the Day but for those of you who didn't... I always heard about this but wasn't sure what the exact halacha was:

Reader's Question:

In regard to the halachos about pregnant women not stepping on nails, I'm curious if a pregnant woman would be allowed to get a manicure/pedicure in a nail salon where there are probably nails on the floor.

Is the halacha that one should be careful to dispose of one's nails properly? Or is the halacha that a pregnant woman should be careful not to step on nails?

Answer:

The halacha is for both the person cutting the nails to be careful, but also for the woman to avoid walking there and endangering her unborn child.

I received the following email from a reader: "A point about nails: R' Shmuel Felder [Shlita, Dayan of Bais Medrash Govoha] told me that a pregnant women should not go into a nail salon (where they give manicures, etc.)."