Day 6 embryos and progesterone

[Solly-44]

Me again!

Thought of a couple of questions after leaving our appointment which I’m sure people here will have answers to…

We have 4 x day 6 and 2 x day 5 embryos left. They are all the same or very similar grades so I was told the embryologist will decide on the day basically, which they think look best. I’ve been told to take 5 full days of progesterone and we’ll transfer on the 6th day. Does this sound right, that the length of progesterone doesn’t change if you transfer a day 5 or day 6, or is this something I should check?

Also, we’re starting progesterone later, and transferring on a later day in my cycle than usual. This is because they have no availability until 3 days after the day we’ve usually transferred on. Does this make a difference??

Thank you in advance if anyone knows! Xx

[Hoop123]

I can't comment on the number of days of progesterone because I just tend to do what the clinic tells me to 😅 And I can't remember what I did last time! But I think I've written a question on it before and got some helpful answers re number of days.

And if it's a frozen cycle and your lining is looking okay, you're absolutely fine starting progesterone a day or two later than usual. Some people stay on estrogen for a long time and I know my days have always fluctuated a bit.

I can also confirm that you take the same amount of progesterone for day 5 and day 6 embryos (which feels counter-intuitive, I know!). I've got both a day 5 and a day 6 at the moment and they both seem to be doing fine 🥰

Best of luck!!! 💕💕💕💕

[Solly-44 in reply to Hoop123]

That’s really helpful, thanks so much lovely! I’ll check out your previous post but the day 5/6 thing is reassuring to know.

Huge congratulations! Xx

[KiboXX]

Hey lovely,

My daughter is a day 5 embryo and my son is a day 6 embryo. With both transfers I took progesterone for the same amount of time.

Also had the transfers on different days of my cycle, I think as long as your lining is where it should be then it doesn’t matter as long as the length of time taking progesterone is correct.

Hope that helps!xx

[Solly-44 in reply to KiboXX]

Ok I can calm down now 😂 That is super helpful thank you. I didn’t realise your son was a day 6-er! Xx

[KiboXX in reply to Solly-44]

Yep, he was! 🥰 maybe that’s why he was born a week late 😂 xx

[Bump12]

Yeah don’t think it matters which day embryo as all that matters is how long progesterone has been in your system. Try to relax and enjoy your FET xx

[Ivfgotadream]

Hmm it was my understanding that for a day 6 to have as good a success rate as a day 5 then it needs to go back on day 5. I have twins one is a day 5 and one is a day 6. But I’ve always done unmedicated transfers following natural cycle and transferring 5 days post ovulation

[Solly-44 in reply to Ivfgotadream]

Thanks this is really interesting - I had never heard of this and after some Googling you’re right, it seems they have much higher success rates transferring day 6’s on day 5. Good to know! X