I got my Aunt pregnant

My mother's sister Grace 36 single lawyer, had just broken up with latest boyfriend. I've always had a crush on Grace and decided to cheer her up a bit. I'm David 23 single carpenter by trade. Grace was the youngest of 5 children in my mothers family, my mother being the second eldest. My mother was the only one of the siblings living close to Grace, so it felt to her to help Grace over the breakup. Grace wasn't a model in looks, but she was attractive to me. She is 5'1" with a full figure, well proportioned for her height. I've had a crush on Grace since I was about 15. So I would go and see her as much as I could after her breakup. Then last June I arrived over her place and found her drunk. She was upset and saying nobody wanted her and such like, I said I wanted her. She replied I mean for marrying and having a family. I said I would marry if I could, I've always wanted you as long as I can remember. This shock her a bit, but she replied with Your just saying that to make feel better. So I kissed her on the lips and soon she kissed me back. Not wanting to miss my chance, I went further and soon was between her legs licking her. From there I took her to her bed and had sex with her, not taking any precautions. The next day I again visited her and she was sober and said sorry for having sex with me. I replied No need to say sorry, I wanted to have sex with you and still do. I really meant what I said about you, then I kissed her again. I had sex with her again and no precautions again. Long story short Grace is now pregnant and we are having sex every week. She told my mother that she got drunk had sex with someone and now is pregnant. I've been helping out around her house and have moved in with her to keep her company, at my mother's suggestion.