SLOW RISING HCG - advice, experience welcomed

Ka

Has anyone experienced a successful pregnancy with slower rising HCG levels. I’m 5 weeks and my levels are rising but not doubling. Anyone been though this?

11/1 HCG 70

11/5 HCG 536

11/7 HCG 1049

11/9 HCG 1553

We have miscarried before (both times) and I know I shouldn’t stress but I can’t help but worry.