Sir sperm pass through 2 layer lagging and panty cloth get women pragnent.

No, but...: NO... because in real life, clothing prevents pregnancy by preventing the passage of sperm, of penises, and of fingers. If not wanting to start a family, one can just keep his and her clothing on. It works quite well. However, if asking "is it possible to happen," the answer to the question, "is there any possibility..." that something can happen somewhere in this world, is almost always YES.