How many make it from 3 days to 5?

[Sangria]

I got a call this morning that I will be doing a 5 day transfer. At first I was really excited, but then I started to wonder what percentage of embies that make it from day 3 to day 5 on average. I can't seem to find this anywhere.

Anyone know this? Or have your own information to share? Just curious.

- Sangria

[Supergenius]

I don't know if it's always the same, but for what it's worth I had:

18 eggs retrieved
11 embryos made it to Day 3
6 embryos made it to Day 6 (transfer day)

Hope this helps!

[dogzrule]

They wouldn't tell you they are doing a 5-day transfer unless you had a good amount fertilize to begin with. While I don't know the stats, I'm pretty sure I was told by my doctor that it is a higher percentage that make it. I had 8 fertilize out of 14 eggs retrieved, and 4 made it to day 5. Keep us posted!

[Ghost]

I got a call this morning that I will be doing a 5 day transfer. At first I was really excited, but then I started to wonder what percentage of embies that make it from day 3 to day 5 on average. I can't seem to find this anywhere.

Anyone know this? Or have your own information to share? Just curious.

- Sangria

I don't know the proportion. The question is what proportion of day 3 embryos with a given number of cells (say, 8 cells) are still developing on day 5?

I believe most of those with 8 or more cells on day 3 are still developing on day 5. The proportion probably declines steadily with cell number, so that those with just a few cells on day 3 are unlikely to still be developing on day 5.

[Sangria]

Thanks for the responses everyone.

I had 12 x mature eggs --> 9 x fertilized --> 8 x 3-day embies, but I forgot to ask what they looked like. I guess right now it is what it is whatever it is and I'll just hope it all works out in the end.

- Sangria

[Sangria]

In case anyone was curious:

12 x mature eggs
9 x fertilized
8 x 3-day
4 x 5-day

And now I wait....

[samgarkay]

Hi. I don't know the details either, but for me I had:

9 mature eggs
7 fertilized
1 fertilized late
8 made it to day 3
8 made it to day 4
the late fertilized one died on its day 4 equivilient
7 made it to day 5

[me2009]

i had 8 ret

6 fert

3 trans on day 3

the other 3 didnt make it to day 5

im now 13 weeks with twins

we didnt want to wait til day 5 because my dr felt that at day 3 was the best for me.

everyone is different.

good luck, try not to worry on the numbers so much. but i know its hard to do

[angeinhull]

Sangria
Sounds like good numbers, I hope you get your bfp and the 2ww isn't too bad!
I had 12 eggs, 11 mature eggs, all fertilized. Initially they said 3 made it to day 5 but later that day they said 6 had made it. We transferred 1 and I am 31 weeks pregnant.

Good luck!

[jmclean]

My understanding of a 5 day transfer is something called a blastocyst. If you have enough fertilized eggs and they are all developing well (at least 8 cells) They will often go past day 3 and wait until day 5 for transfer. Here is a link with info on blastocyst.
http://www.advancedfertility.com/blastocystimages.htm

From what I understand, blastocyst is often an option for those wanting a single pregnancy as the success rate is better.
I am not an expert. In my experience, I have only ever made it to day 3. 1st attempt was a BFP, Second attempt BFN, and now in the middle of my 2ww.
Hope the info helps. I think it is a positive to have good healthy embryos that make it to day 5. Wish you lots of luck!!