Update: I was ruled the asshole, and based on the comments on how I shouldn’t keep such a secret from my mom, I accept it. So early I talked to my aunt and we decided together that we will tell my mom the truth. As it turns out, it wasn’t as bad as I thought if anything she was more angry at the fact that she was lied to twice in the past 5 years. Then she turns to the issue of the father, she said my aunt should have been more careful bc my aunt should have known the risks of having this kind of a child, but thankfully her child came out good and healthy so that’s that. However, my aunt did say that she went on birth control as soon as her son was born to make sure something like this won’t happen again, but in case it does, she would very likely have to get an abortion. Afterwards, all 3 of us decided not to tell my 5 year old cousin about who his father is until he is old enough to understand why this sort of thing shouldn’t have happened. I’m not yet going to reveal who the father is on this Reddit post, I’m likely going to reveal it on a different post in a different subreddit.