HCG doubling time slowed down

[CLSDoc]

I have had 2 early miscarriages so we're keeping an eye on this one very closely.

My hcg is:
8 (10dpo)
27 (13dpo)
54 (15dpo)
So first time doubled in 38 hours and second doubled in 48 hours. I know this is still in range, but should I be worried that it's slowed down and is still on the lower side of normal for level?

Hello!
I'm afraid I don't know the answer but wondered what hcg stands for and how you test it?

L x

It's human chorionic gonadotropin. It's the hormone the pregnancy tests look for. It's done as a blood test but not usually unless there is a suspected problem with the pregnancy