What do I do?

My sister passed away and left 6 kids and the oldest one is 15. My mom has had these kids since my sisters passing in 2015. He has stolen cars and has stolen my older sister’s car and drove it an hour to the next town over with his friends, with no license or permit. He went to the youth jail last month after being caught with weed and my sister’s gun he stole that she had been looking for for months. They were trying to send him to a facility for troubled youth (where he would live and go to school etc) but my mom lied to get him out and now that he’s on probation my mom bought him certo (the jelly pectin) to pass his drug test because he won’t stop smoking. I told her she’s enabling his behaviors by helping him pass a drug test and he is just going to get worse. She ended up telling my nephew what I had said and he texted me cussing me out.

Me and her got into it pretty badly after that. I’m 37 weeks and will be induced on 10/24 with my first. I ended up telling her not to come to the hospital and now I feel so bad. I’m 26 and although I have my husband and doula, of course I want my mom there.

I don’t know if I’m venting or need advice or what. But I just needed to get this out of my system.