Need help, advice

I recently found out I was pregnant and my emotions are over the roof. My family’s not to happy. And I understand that because they just were expecting more from me. And I’m only 19.. but I’ve always knew I wanted to be a mom. I took care of my siblings from a very young age. And I love kids. But everyone’s been telling me there opinions and how drastically my life is going to change and how I mite not be with my baby daddy forever because I baby changes everything. And I get that. I could never do abortion. That would scar me forever but I also don’t have anything to off my baby right now. I feel like lately nobody gets what I’m going through. It’s a tough situation. I want this baby but can I really do it... am I ready for the changes. (This pregnancy was not planned it was a shock to everyone especially my baby dad and me)