Hi idk anymore,
Technically, anal intercourse poses a low risk of pregnancy (especially compared to vaginal intercourse). The reason for this, to quote Heather in this article (
https://www.scarleteen.com/article/advi ... and_is_not), is, "During sex, when we're all aroused, things usually get mightily slippery down there. So, if you're a receptive partner to anal sex, when your partner ejaculates, that ejaculate will run out of the anus, and sometimes can easily slide down the perineum to the vaginal opening. That can create a pregnancy."