Pregnancy after loss

J

This is my second pregnancy, I lost my daughter to stillbirth in October and so finding out I was pregnant again has been over joying and a little bit scary.

I found out Friday I was pregnant (I was two days late) and my HCG was 42.3 Which they said is very low. Today I went back (48 hours later) and it is 123.5 , almost tripled.

Is this a good sign?

I was seeing someone said that tripling in 48 hours can be a sign of multiples or Down syndrome.... is that true? That doesn’t seem to be very true based off others I have seen.

But any info would be great. Thank you!