I had a natural FET with ovitrelle and my transfer was 6 days after trigger! I don’t think it matters when it is in. Your cycle as long you catch it before ovulation to do the trigger! Currently pregnant 5w5d with my 2nd doing this exact protocol
My FET was 7 days post trigger with a modified natural FET, I am just shy of 9 weeks pregnant. It all depends on your estrogen/progesterone levels- you can always advocate to have your labs done before your FET to confirm.
They won’t do any bloods
That’s redic. I would speak to your patient navigator at your clinic. Another alternative if your in the US and have funding is to go to a walk in lab and pay out of pocket for the tests.
I’m In the uk
I had my son with an all natural FET a couple of years ago, first try. My clinic then decided they weren't doing blood tests and scans etc for people to be able to do that, so everyone was to get ovitrelle and progesterone pessaries basically whether they needed it or not. I did a FET in this way in December and it failed but it was transfer 6 days post trigger like you say, but it was on day 18 of my cycle and I'm currently on day 13 and getting a flashy face on my ovulation kit so I personally think mine was too late. I'm doing another one naturally this month and using ovulation kits at home instead. That's not say yours is going to fail or being done wrong or anything though- it does sound like the timings my clinic also use, and they said that overall they get a higher success rate doing it like this x