Transfers 3 vs 5 vs 6 day

Eyerlande · January 2009

I read the post below about a 5 day transfer and it got me wondering. My protocol is for a 3 , 5, or 6 day depending....on what I'm not sure. I'm sure that this is probably standard. Why do they choose one over another. And is one better news than the others? Thanks!

schmoodle · January 2009

I think it depends on the clinic a lot - and there is conflicting info out there. Most studies cancel each other out such that I think the common belief is that there aren't higher success rates with either. The benefit of 5 day over 3 day is that as the embryos develop into blastocysts there is more information from watching them the extra 2 days to choose the very best. For what it's worth, my clinic is very well respected and has great success rates, and they do 90% 3 day transfers. I've done 2 fresh cycles with them, one 3 day and one 5 day, both successful. The second time we did a 5 day only because I specifically requested it since we were only transferring one embryo and I wanted to maximize choosing the very best.

?Good luck!?

groovygrl · January 2009

Ditto schmoodle..

I haven't read much good info about success rates with either 3 or 5, but if someone has enough embies & they're growing, they might let them go to 5 day to pick the 'best' looking ones. If they don't have very many or for whatever other reason, they might choose to transfer at 3 days, b/c the thought is that they'll do better in your body than in a petri dish regardless.

It is hard though- my 2 'best' were transferred at 5 days (and ended in c/p) but at 6 days when they were looking at which to freeze, 2 made it to freeze (out of 5) and they ended up being graded better than the 2 that were transferred. Just did an FET with those 2 & am pg with twins.

I would just ask your dr a lot of questions about why they do what they do- they all have their own reasons, and most likely, they're all good ones.

Eyerlande · January 2009

Thanks ladies! I wish the best to both of you!

jlh123 · January 2009

My understanding as to why they waited for a 5 day is that they have a good amount of embryos still going so they wait a few extra days to pick the "best" ones who make it to the next stage. We could've still had excellent quality ones today but I'm guessing there were more than a couple doing well so they wanted to wait to see who makes it to the next stage. I think it's more of a numbers thing. If there were 2-3, I'm guessing I'd have my transfer today.

jlh123 · January 2009

fyi... it also depends on your diagnosis. With our sperm issues, we were expeting embryos to not make it too far so it's important to see how they go considering the sperm issues we have. The fact that we are going strong amazes me with the sperm. Also, like above poster, our clinick mostly does 3 day transfers. But our doctor really wanted a 5 day if possilbe from the beginning due to sperm issues in play here.

Eyerlande · January 2009

Thanks again. We are doing the IVF with ICSI and Assisted hatching. I have had a couple of surgeries for endo in the past and DH has low morph. I feel so uninformed. Well I feel informed until I begin reading the posts and discover, wow I didn't know about this or that. I haven't had many appointments with the Dr., but lots of tests/labs and phone calls with the nurse telling me the next step. Then a few days go by and I have all these questions, which lead to more questions. Thanks for the info ladies!

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Transfers 3 vs 5 vs 6 day

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