You’re 17, pregnant and probably scared. You’ve made an adult decision to be a mother. Now you have to make adult decisions about how you will live your life.
My guess is that your mom is both angry with you and worried about the future. From her point of view, your boyfriend is in no position to be a father. He apparently doesn’t have enough of a job to rent an apartment and support you and the coming baby. That would worry any mom. All you can see is your love for your boyfriend. Your mom is looking at whether he is prepared to take on the responsibilities of being a husband and father. Apparently she doesn’t think he makes the grade. She may even be right.
It’s a great distraction for you and your mother to fight with each other. I suggest you stop arguiing and start talking about whether you are really ready to be a mom, whether you can support a child, and whether your boyfriend can be a real partner in doing so. If so, there is nothing to argue about. You and your boyfriend should get jobs, get married, and start your own life. If you are somehow expecting your mother to be your backup, think again. She has already raised her children and may not be at all happy to raise yours. If that’s the case, think about the adoption option. Sometimes the way to love a child is to make sure she has parents who can raise her well.
I wish you all well in this difficult situation.