Please, tell me if i'm wrong..?

It is okay to be angry, and upset, you have every right to that. Nobody can tell you how to feel. You really should tell your parents as soon as possible though, i mean they will be disappointed, but they will support you because they love you, and i am surprised you have money saved and a job, and are taking high school online, it is really weird to see someone of your age taking responsibility for that, that is very good, i can tell that you want what is best for your child, i hope everything goes okay. Just so you know, having a child is a blessing no matter what age you are. Good luck!