19 & trying !

I'm 19 going on 20 this year ! I have so many people saying no you shouldn't be trying your only nineteen blah blah ! I first got pregnant at 18 didn't expect that to happened so yes I was scared but then I was so ready everytime I felt a kick heard a heart beat , then I lost him ! I want that feeling back and I'm going to have it my boyfriend agreed even though he has one & im just tired of people giving their opinion when I didn't ask