Cesarean scar ectopic pregnancy

How do you choose between saving your own life, and saving your childs life? Had an ultrasound today am 7 weeks 3 days and baby heart beating strong at 140bpm but baby isn't in an ideal position, the doctor says. They are suggesting termination, because this condition is life threatening. But how can I choose to stop my child's beating heart??? I'm broken and terrified.. Lord give me strength and be with me 😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭😭