all of the time, but I am not pregnant. If you think you may be pregnant, take a home pregnancy
test either 2 weeks after having
sex or after a missed period. Both should give you an accurate result. Also, pre-ejaculation does contain sperm, but does not contain as much as a normal ejaculation. Guessing as to whether it is a boy or girl is also impossible and just a guess. Your friend just got lucky with her guess, but that is not a proven way to tell what sex your baby is.