Hello doctor I m 25yrs old lady. I have a question that in withdrawal method at the tym of intercourse have high failure rate ???if yes then how much ???? And I also want to know that is it true that a man b4 getting a sense of ejacultion can ejaculate any “pre ejaculation liquid type material” ? If yes then does it have sperm on that liquid and whether after withdrawal that liquid can make a woman pregnant without the sence of her and her partner ??