Anyone ever have this happen and turn out well?

On the 3 week mark I got my bfp pt . I went in Monday for blood work, got it back in Tuesday which came back to a hcg level of 380. Then since I had spotting very early on I went in for an ultra sound ( 3 weeks 3 days pregnant) to make sure it wasn’t ectopic. Nothing seen that would make them think of an ectopic pregnancy. But nothing seen in my uterus either.

Went back in for blood on Wednesday then got the results today with a hcg level of 350 so it’s going down. I’m 3 weeks 6 days preg now with no current bleeding, no cramps (other than if I eat too much lol) no pain etc.

Anyone else ever have this with it turning out positive and not a miscarriage.