AITA???

So I’m 18, and my mother was kicking me out(because I’m 18 and wanted to work for a year before going go college) I ended up leaving before she could strand me where she refused to allow me to collect my things(any clothes, underwear, bras, my personal products, electronics I paid for, etc.). So naturally after I left I didn’t talk to my mother. In October, right before Halloween, I find out I’m pregnant. I don’t tell anyone, but then my aunt’s ex-girlfriend called me and asked me if I was pregnant. She told me my aunt told her, and she heard it from my mother. I went to my mother asking her why she’s telling people I’m pregnant and what makes her believe so. She said she remembered she was logged into my email and went looking, and found my sign up for BabyCenter… I was beyond pissed, so I asked her why she felt the need to tell people my business I wasn’t even telling people?? And her response was that, it’s a lot on her heart and she needed to tell her support system… My mother and I have never gotten along… but I didn’t think she’d take away the opportunity to share my news… to who I WOULD LIKE TO KNOW THE NEWS, I didn’t even want my aunt to know because she’s just as crazy as my mother(this is my mother’s sorority sister). I went off!!! And when I calmed down I asked her if she’s going to respect my privacy in this. She tells me she’s not going to kiss my ass just because I’m pregnant. I took that as a “fuck you, and fuck being a grandmother”. I clarified with her that if she did not respect my boundaries, she would not be apart of this part of my life with me. She responded directly “well if that’s what you wanna do, but don’t go telling that baby that I don’t wanna see them”… I’m getting pissed off thinking about it… anyways… I decided to block her number, then I just changed it bc of the shit that happened with her twin sister, my older sister, and the aunt in this story. But I’ll only tell it if it’s asked for. But AITA for cutting her off??