Can a girl get pregnant during anal

11 Things Not to Do During Anal Sex. Is Anal Sex Safe During Pregnancy? | Parents. If you are an older woman with risk factors such as new or multiple sex partners, or a sex partner who has an STD, you should get a test for chlamydia every year. Although you are at a lower risk of pregnancy when your partner withdraws before ejaculation, there is still the potential of pregnancy from pre-cum. There is zero chance of pregnancy when two individuals do not engage in sexual activity of any kind. In addition to bacterial infections, anal sex during pregnancy increases the risk of sexually transmitted infections STIs.