what should I do (need advice)

I'm a freshman in college & im 20 weeks pregnant. After I finish my first 4 years. I wanted to go to law school to become an defense attorney. My mom has no problem with taking my baby & taking care of it so I can focus on school. But that's a very long time. I don't want to be looked down like I just got pregnant & have my mom taking care of my responsibilities. I really want to be successful though! Only other career choice I want instead of an attorney would be an astronomer but that takes a lot of years in school as well. I've considered going to the military so that my child could get good benefits & my mom won't have to struggle if I did decide to let her keep my baby. But I really want to be there, I won't to do my part as a mom. I feel like my baby would think I just abandoned her/him. I'm so lost right now 😕 what would you do?