Can sperm on a wet sponge cause pregnancy?

[User_]

sometimes i masturbate in the bath but I always wash it out when I’m done with bleach and the bath sponge, however it occurred to me that the semen could still be on the sponge when a female family member used the bath around 15 - 30 minuets after I had done (even though I had washed out the bath prior to her getting in) this is something that has been worrying me as I get paranoid about random things very easily. I feel like it is a stupid question because I know that I washed the bath out thoroughly with bleach before anyone else got in, but what concerns me is the fact that I used the bath sponge to do so. I also discovered that the female was on her period at the time of this happening and I did some research online but I cannot find a concrete answer as to if this would imply that she is not pregnant. Deep down I think I know that there is nothing to worry about but I need some reassurance, thanks!

[specialmom]

As I said, it is not possible to get pregnant from sperm on a sponge.  A penis has to enter a vagina.  That's it, not possible.

[User_]

Okay, thanks again!

[specialmom]

No. This can not cause pregnancy.  A penis needs to enter the vagina for pregnancy.  Sperm are smart but they need to be directed in order to find the right entrance and path to your egg.  No worries.

[User_]

Thanks for your reply, so the bleach would have killed the sperm, correct? And the fact that she was on her period makes the chances of this happening even lower?

[User_]

I was also concerned that the female may have used he sponge around her genital area.