Mom only cares about herself

I’m going to start off with a little back story on how my mom was.

My mom is a good mom in her own ways I guess. she’s always cared mostly about her self , we always had food and clothes but she did lack on giving me and my sister attention. We were basically raised by my aunt since my mom and dad separated they were mostly off and on. My mom official left my dad when I was 14 , Thanksgiving of 2012 my dad spent thanksgiving with us my mom and him were together I guess but by Christmas 2012 my mom brought a NEW fucking guy over for Christmas dinner . He moved in the house feb 2013 and they got married April 2013. My mom lacked attention towards me and my sister EVEN more it was fucking insane the person she was becoming. My step dad was verbally and physically abusive towards her . He would mentally abuse her sooo bad . It’s like we completely stopped having a mom. Anyways so when my mom got with my step dad she always talked about wanting to get pregnant I never paid much attention to her I didn’t think much. Months after turning 15 I got pregnant I wasn’t taking care of myself obviously but I knew I was going to keep the baby. When my mom found out she took me to the clinic and they tested me in which it came out pregnant and the doctor asked me if I would be keeping the baby I of course said yes but my mom went onto telling the doctor that we would think about having an abortion and she asked him how many weeks I had until having an abortion wasn’t possible I was sooo upset that she would be thinking like that I knew she was being like that because I got pregnant when she wanted to get pregnant. But whatever time went on I had my daughter I moved out. Now 5 years later my mom left my step dad and for her new bf (forgot to mention my mom got pregnant and had a daughter during the time I had my daughter) so she’s very serious with this guy and has planned to move out she’s taking only my little sister and leaving my other sister who’s 20 at my aunts. The last time I saw her she talked about getting pregnant I didn’t put much attention to it . Well I am now 21 turning 22 and I got pregnant again and I told my mom and she’s ones again telling me to have an abortion. I’ve told her no but every time we talk she tells me of all the places I can go to and have one. I just don’t understand why? I’m married this will be our second and I truly wish my mom was happy for me. Is anyone else’s mom like this ? Sometimes I feel so alone not understanding why she’s not happy for me .