If a girl gives a guy oral sex, can she get pregnant?
No, it’s not possible to become pregnant from oral sex — stimulating a partner’s sex organs with one’s mouth — whether ejaculate is swallowed or not. Pregnancy can only happen if ejaculate or pre-ejaculate gets in the vagina or on the vulva.
However, unprotected oral sex — on a woman or on a man — puts both partners at risk for a number of sexually transmitted infections, whether they are giving or receiving genital stimulation. These infections include chancroid, cytomegalovirus, gonorrhea, hepatitis B, herpes, human papilloma virus (HPV), herpes, syphilis, and, rarely, HIV and chlamydia. For safer oral sex, use a condom to cover the penis, or a Sheer Glyde dam or plastic wrap to cover the vulva or anus.