Hcg levels not doubling

Candice ivf mama of 2 💕💙

I’m hoping to get some advise from some ladies that may have gone through this. I have had 3 confirmed early losses this past year. Found out this past Friday we are expecting again. First hcg was 36.6, Monday was 234.4 and today is 367. Anyone had positive outcome with hcg not doubling ?