When a teenage guy cums does it always contain sperm? if a teenage girl is fertile and a guy cums inside, what's the likely hood of getting pregnant?

Teenager: Yes and yes. It's very important to practice safe sex - guys use condoms. In addition, girls may use birth control pills. While we are on the subjects of sex and pregnancy, i highly recommend both you and your guy to get gardasil, the vaccine that prevents you from contracting genital warts and help prevent developing cancers of the cervix (uterus), penis, rectum, anus and mouth.

Yes/only takes once: You need to accept that any unprotected vaginal sex you have with a male can get you pregnant.It doesn't matter if he "cums" inside you, as any any amount of a males fluids may have enough sperm to impregnate you.It only takes one exposure.