Okay girls

I’m 16, I’ve never really had regular period they’re normally around 3-4 months apart. Imon birth control and me and my boyfriend always use condoms as well. But I just got two positive tests. I’m not scared really to step up and be a mom since I have a steady job and my boyfriend is almost 19 and has a nice job. So financially and mentally I think I can do it. If I’m responsible enough to have sex I’m responsible enough for the consequences. The one the i am very very very terrified of, is my mother. She is so Christian and strict on to the aspect of no sex before marriage. She had a talk with me when she put me on birth control and told me she was putting me on it just so if I ever decided to have sex I’d be safe because she preached to me that she didn’t want me to be 17 and pregnant but I’m 16🥺. My boyfriend lives with me right now, I’m honestly afraid she will throw us both out. I know they’re rightfully gonna be mad but Ik my mother is gonna do something bad. And I’m scared. Does anyone have any tips as to how I can tell her?