HCG increasing but not doubling- help 😭

Laurel • 👼🌈👶👼👼 due 11/6/21 with a 🌈👶

Just got my serial HCG results. First draw said 160, second draw 48 hours later is 249. This is bad, right? I’m 4 weeks 4 days today. We had a mmc at 19 weeks back in April, so I am pretty devastated at the idea of another miscarriage.