Can my family members use that soap i wash sperm?

You've asked this question so many times and the answer remains the same: no, no one will become pregnant from using that soap. It's time for you to stop asking and use your own soap if you are that concerned.

Sperm dies in moments when it comes in contact with soap. Why you would not wash any sperm off the soap is not clear from the post. The answer to this question will not change so repeating is is a waste of your time.