1st Pregnancy But Unsure On What To Do!! ADVICE PLEASE

Hey!! I just turned 21 in December and found out I’m pregnant two days ago. My boyfriend and I have been dating for a little over two years. He graduated college and is now in the police academy. Im still in school part time and work full time. I told my mom yesterday that I was pregnant and she flipped out! Saying “she won’t be happy”, “I can’t talk to her”, “we both should have came and discussed this with her and that he can never speak to him again” I was excited for this baby but now that she has said all these things I don’t know how to feel. She’s mentioned me working and school and honestly I really need some advice. He’s supportive of any choice I make but which is the right thing to do. Everyone keeps saying how it’s my choice but I feel like it’s not! I’m scared I’ll do something totally wrong and regret it.