HCG doubling time??

[Cpcp]

Can anyone help?? I had a FET earlier this month. HCG started off really good at 275 at 10dp5dt but then has only been doubling every 3.5 days since then. I’m now at 1066 at 4+6. My dr said he is still positive as no.s are still rising. Does anyone have experience of HCG not quite doubling in 48-72 hrs??

[Ivfgotadream]

hi there unfortunately for me it’s never ended positively. Usually they say at least a 60% increase in 48 hours but my only viable pregnancies out of 8 have had doubling or more over the 2 days