Sure. I know a woman who had a threatened miscarriage at 4 weeks. She just relaxed and took it one day at a time. Eventually, everything was fine. So it's possible to have a good outcome.
Yes, there are. My sister had a threatened miscarriage at that time. She had some light bleeding and was worried. But the doctor said it could be okay if she took it easy. She reduced her physical activities, ate well, and took the medications as prescribed. And it worked out well. It's important to be positive and do what the doctor says.