Should I tell my mom?

Melanie

I wasn’t sure where to put this so I put it here. Thank you to anyone willing to read this because I know it will be a bit long. Anyways I’m 18 and pregnant but haven’t lived with my mother since I was around 12. My dad got custody of us because my mom chose to do drugs and her life has completely went downhill. She is living with an abusive boyfriend and has a now 2 year old son who sees them do drugs and sees her boyfriend beat her. I currently live with my boyfriend and my mom calls me everyday. We recently got back in touch a few months ago. She keeps asking me if I’m pregnant and I have no idea how she would know to ask that. I’m only 10 weeks so I’m not showing and I only see her maybe once every 2 weeks. But I don’t know if I should tell her or not since the way she is living. Her mind is completely messed up and she’s not the same person. She says crazy stuff and repeats herself a lot and it’s really hard for me to go around her because it’s like she’s a totally different person. I don’t want my baby around that but then again, it would be his/her grandmother and I don’t know if they will be upset with me in the future because they don’t know who their grandmother is. What do you guys think?