Anal Sex
Getting pregnant from anal sex is also unlikely, although the possibility does exist. During anal sex, ejaculation occurs in the anus -- which is not connected in any way to the female reproductive tract (i.e., vagina, cervix, uterus, cervix, fallopian tubes). But, any time semen comes in contact with the vagina (such as if it drips from the anus during anal sex), there is a possibility of becoming pregnant.
Mutual Masturbation
Following mutual masturbation, there may be semen (on hands or fingers) that comes into contact with the vaginal area. Therefore, while also unlikely, there is a possibility of pregnancy following mutual masturbation.
Final Thoughts on Getting Pregnant Without Having Sex
If you are looking for a way to not get pregnant, oral sex is probably your best answer -- semen will not come into contact with the vaginal area. If you are trying to avoid getting pregnant while still having vaginal sex, make sure to use two forms of birth control (such as a condom and the
birth control pill), as a condom is not 100 percent effective.