need to vent 😤😤

I'm 18 years old and have a 2 month old, me and my boyfriend don't have our own place but we've been staying with each other at his parents house. my mom has been extremely mad at me for these 2 month bc "it's not right that we stay together in the same bed bc we aren't married" she wants me to stay home every night with my baby by myself. ITs not like she doesn't see our baby either bc I'm home until 8pm every day while my boyfriend is at work I don't think it's fair to either of us or our sweet baby boy. I'm 18 and it's OUR baby, not hers. This situation has put me over the edge. I now have to go to counseling once a week and I'm getting put on medication bc of it!!!! not sure what else to do.

I just want to hear other moms options on this.