Sperm on clothes cause pregnancy ?

No.

even if it's not completely dry ?

No.

Thank you so much

I still have doubts though

You are doing it all wrong. That will never work.

The correct method is for the man to have his penis female's vagina when he ejaculates in order to ensure that the fresh sperms can swim up and find the waiting egg.

The technique of ejaculating on underwear is never going to cause a pregnancy. It is also not nearly as fun as the correct method. Trust me.

No.

It's only a problem if a male wears the 'underwear'.

Why is that a problem?

I don't think biological males get pregnant, even if they wear woman's underwear.

(I would wear Glitterbag's underwear, if she will send me a pair.)

Yeah, and I want World Peace....I guess we will both be disappointed.

That's OK. But I will say a pair of used undergarments seems like an awfully low price for World Peace.