I guess I’m pregnant

I literally just took a test. I expected it to be negative, I’m 12 days late and was definitely in denial, but to my surprise it was positive. I immediately took two more and both showed up almost immediately. I’m in such shock I don’t know what to think. I’m only 20 and me and my boyfriend are only just starting our adult lives. Now it’s on to figuring out how to tell him and what his reaction will be.