Possible miscarriage

Ro

So I had a miscarriage back in December and currently pregnant again according to my lmp (April 11) I should be 7 weeks 3 days today. However on May 27 my hcg was 455 and may 30 is 969. I know I ovulated on April 28. Tracked with opks. Last time my hcg was slow rising and ended in miscarriage. Based off my ovulation date and hcg levels do they seem ok or should I prepare for a possible miscarriage again?