How long to taper off progesterone support

Dear Dr Sher,

I am currently 8+2 pregnant following our final FET with our last euploid embryo. It was a natural FET. My 8 week scan showed everything to be on track with no obvious concerns.

My IVF clinic say to stop all progesterone at 10 weeks (I'm on 3 x lubion and 3 x 400mg cyclogest per day). I am also under the care under a reproductive immunologist who will keep me on 2 x 400mg cyclogest per day until 16 weeks. Is it ok to drop straight down to just 2 cyclogest at 10 weeks or should I taper off more gradually? Or should I ask to keep on full progesterone support for longer?

I would value your opinion.

Many thanks

Vicky