What are the chances?

So I went for my first appt after finding out I was pregnant. I was 6 weeks and 5 days and heard the heartbeat and everything was great, thank God. What are the chances of miscarrying after hearing a heart beat?

P.S I’m in the process of moving, I Am Not lifting anything heavy as told by my doctor. However just the stress of moving and having to pack and unpack is making me worry about my baby.

It took me 8 stressful months to conceive and now that I have I’m still stressing! It never ends 😭🙏🏻