Slow rising HCG 4w2d

Sa

I have had two miscarriages and one healthy pregnancy. I am pregnant now for the 4th time. I'm 4 weeks 2 days today. Because of my history, my doctor always orders HCG draws immediately. I had two done so far. Thursday my levels were 28.9, and Saturday it came back at 32.9. I'm going again tomorrow to be rechecked. Has anyone ever had slow rising HCG and gone on to have a healthy pregnancy? Or should I prepare for another loss?