Hello everyone, this is my first pregnancy, and it's my first time giv…

Hello everyone, this is my first pregnancy, and it's my first time giving birth. I'm at 15 weeks, had an ultrasound, they said the baby is low-lying, shouldn't be like that, they put me on bed rest, the doctor said the cervix is well fixed, should I worry? Maybe a bandage or something else can be done or will the baby just move up by itself?