Abortion?🥺

Please no judgement 🥺I need advice I’m struggling to make a choice.

I’m 22 years old I’ll be 23 in September. I’m a mother of 2❤️ Boy ( 6 going on 7) & a daughter (1 going on 2). I’m 5 weeks & 5 days pregnant. I wanted to have my last child in future (total 3) . I didn’t expect it to happen soon. My boyfriend & I used protection & the condom broke so that’s how I’m pregnant. I was excited at first but now I’m struggling.. I know 3 kids @22 seems crazy & I understand. My Doctors knew I wanted one last kid in future since my OBGYN told me I’ll get cancer in my uterus (in less than 8 years) since I have Endometrial Hyperplasia. I do live with my mother but I pay rent , I buy my kids everything etc. i tried leaving on my own before to start my life! But my mother calls me selfish for wanting to leave & for wanting to learn how to drive & but myself a car!🥺I wanted to do so much but my Mom threatens me & all. Anyways, I told my Mom I’m pregnant & she thought I was joking but I told her I’m not playing. I told her it wasn’t planned (since we used a condom) & she just snaps at me? She treats my unborn baby like a burden.. she Down talks me & talks to me nasty. My Mom was never supportive to me & my sisters growing up. She only cared for one of my sister.. anyways , she finally tells me that I can continue to save up more & find a place. Which I totally agree! But as days pass my mother becomes more mentally & emotionally abusive.. my sister is pregnant & my Mom treats her AMAZING! She buys the baby things, talks about the baby 24/7! Which I love because that’s my nephew! But it sucks my Mom is rude to me & my unborn.. my Mom wants no parts which she was never like that.. I’m so stressed I feel like a horrible Mom if I keep the baby. Because my Mom speaks down on me daily now. She don’t want anything to do with the baby I’m having but she loves my 2 kids! I’m stressed I feel like I don’t want to bring a baby into this world where my Mom is nasty & im struggling to move forward because she’s quick to threaten me etc. also, my boyfriend cheated on me twice before & I learned to heal but it’s all just hitting me as dominos! I don’t believe in abortions but I feel like I failed🥺☹️💔I help everyone around me but I get used. What should I do?🥺the dad is supportive ! He’s excited & he wants to be a Dad

Edit: Im just really scared!! She’s so nasty & when I ask for help she don’t like to help me when it involves moving forward to get my own place & car. I ask her advice & ask if she can guide me since I don’t know how to take proper steps to reach my goal . But she quickly gets mad about it & goes “idk” then leaves🥺I’m trying my best