Last year I had a etopic pregnancy. So when I got a positive test last week my doctor wanted to monitor my hcg levels. My levels were

145

305

Then 4 days apart 890

1200

2600

I had a ultrasound and it's in my uterus and measures correctly at 5weeks and 6 days.

My question is since my levels haven't doubled everytime is it possible I'll have a miscarriage? I don't have any pain or bleeding as of now