Miscarriage

Serena
Could my baby stop growing and me not know? I don't have any blood spotting or anything my stomach just was growing at acsteady rate and stopped I'm 12 weeks so now should be the time my stomach grows more and ut hasn't and I've been very very stressed lately but I'm not sure what to do i haven't called the doctor or anything because I have an appointment soon and I feel like they will just make me wait until then anyway but I just idk my stomach stopped and it's weird to me is this normal?