What to do???

Back story: I’ve had 2 miscarriages. 1 in Jan and 1 in April. I’m now pregnant again. I had my first us and they said I was less then 5 weeks. But everything looked fine. I started bleeding dark red and panicked so I went in. They did an US and saw a heart beat 133💜

I know they are gonna ask me to do the 10 wk blood testing... I forgot exactly what that test. Help? Does that test and decide if it’s a normal good pregnancy? And would it say if it’s a threatened Mc? Or is it just for genetics as far as Down syndrome etc?