Young mom feel like I'm not allowed to be excited.

I just feel shame and guilt when I want to be excited. I may be young, I'm only 18, but I'm not like 14 or anything. I've graduated high school, I'm a first year in college currently, and while I wish this would've happened a little later, I don't think I'm a terrible person. 
But I would've been a terrible person for getting an abortion too according to society. And somehow keeping the baby makes me still irresponsible. Sorry I was on birth control and it failed. 
I just don't know what to do. It's like I get judging looks from everyone if I shop in the baby section, and even my own family members have expressed their disapproval. They're so big on education. 
 I guess I just have to learn to deal with judgement lol. 
Anyone else feeling isolated and put down because of their age?