5 weeks, what are your hcg levels?

Heather
At 3 weeks, 5 days, I was at 104, then at 4 wks, 1 day, I was at 256, and at 5 wks I'm at only 407. My doctor and I are concerned because they should be doubling. I'm getting more blood work done tomorrow. Anyone else with a similar situation and it turned out okay? I had a miscarriage in May and I can't bare the thought of losing this baby too.