Please help - slow rising hcg

I am 5 weeks and 3 days today. This is my pregnancy after two very early losses. In prior ones my hcg never went up more than 100. This one my hcg today came out to be 2950. My hcg has been increasing 70 percent every two days and not doubling. This was my fourth draw. Any success stories with slow rising hcg. I am so nervous. My last draw was Friday and then the hcg was 991(4 days ago)

Please help. Please