1 mars 2022 · Frequently Asked Questions (FAQs): I got my sister pregnant, Help I got my wife’s sister pregnant, what should I do? If you got your wife’s sister pregnant, you need to tell her, because not only did you cheat on her, her sister has also betrayed her trust, and she deserves to know that. 18 août 2023 · Seek mental health help. If you got your sister pregnant then clearly you need mental health help to uncover the reasons why you got into a sexual relationship with your sister in the first instance and the effects of this relationship in your life going forward.