Need Advice.

Hi All, just found out I'm pregnant...so many emotions are going through my head. I'm 23, a year into my career (that I dont really like), have been with my boyfriend for about 5 years. My bf has been okay with the idea of pregnancy since college (crazy ass right?) I, on the other hand, was never really that okay. I always knew if that were to happen, I wouldn't go through with it because I don't feel ready. Well, it actually happened and I'm so conflicted. When it came out positive, I was nervous, happy, and frantic. The thought of a human inside me is crazy. I told my bf and of course, he wants to have this baby. I feel like the best auntie, but mom?!?! And most importantly, I wanted to do it the right way: get married, travel the world, then have a child. I really didn't want a kid before marriage. I dont know what to do. Advice?