16 pregnant and scared

I don’t know how to tell my mom☹️. I’m scared and I don’t know how she is going to feel. My mom is only 31 because she was also a teen mom. It’s like the one thing she does not want to happen and I’ve done it🙄. I have a job and I’ve been with my boyfriend 2 years. We both work and go to school full time so I know for a fact that we can’t fully support ourselves and a baby🤦🏽‍♀️. How should I tell her and what should I do

** update, I don’t know if this is a bad decision. It probably is, but I’m thinking to wait until she sees that I’m pregnant (like 6months) for her to see on her own. Because i feel like she’ll try to hurt me if she can’t see the baby