Do I need to get a doppler at home

I’m currently 9 weeks pregnant, and last week I had a terrifying experience when I suddenly passed a large clot along with a gush of fresh blood. I rushed to my doctor’s office, convinced I had miscarried, but thankfully, there was still a heartbeat. However, my doctor said it’s a threatened miscarriage.

Now, I’m feeling extremely stressed and can’t stop worrying about the possibility of losing the baby.

I’m wondering if getting a home Doppler might help give me some peace of mind. Do they work accurately this early in pregnancy, or should I hold off?