feeling overwhelmed

 im 18 turning 19 in April and im around 7 weeks pregnant. im so stressed out and sick. i hate being pregnant but ive already told my mom, cousins, and grandma. im having second thoughts about becoming a mom but i do not want to abort. im scared to be a mom and ive been really depressed since ive been pregnant. has anyone been in my shoes before? did it all turn out okay? what should i do?