listen to mother or not ??

So I'm 5 weeks pregnant with my second baby . I Am 20 years old and today I just told my mama I'm pregnant. The first thing she tells me is I gotta do something about that . She says I'm not ready and this and that. But this what I don't understand how you going to make a decision for me ? I'm grown I moved out I worked I go to school now. I pay bills I take care of myself and my daughter. I feel like everytime I listen to her I later regret it. I can't just kill my baby cause you don't want me to have another kid. I chose to lay down and do what I did. I take full responsibility of my actions. And I know mothers knows best and all that blah blah blah. But let me decide on my own. How she think I survive this long