IUI timing question

Temp305315937507972

I asked my nurse if we're having B2B IUI again this cycle and she said that it all depends on my body, she said that if the day of the IUI my follies are still there then they do B2B but if they see that the follies were released then they only do 1 IUI.

Isn't it better when the sperm is waiting for the egg? So if they see that the egg is still there then why do they want you to come again? In other words, my RE prefers that you ovulated by the time of the IUI, if he sees you haven't ovulated they do another one. That's the reason they do ultrasounds the day of the IUI to confirm if you'll need another one. He schedules the IUI 36 hours after trigger.

OceanBreeze1

Maybe if they do the IUI right after the egg releases they think the sperm can catch the egg while it's travelling so the sperm won't have to sit around and potentially wither?

::shrugs::

Marielle0430

I'm not sure   My RE doesn't do B2B IUI unless there is a sperm issue and they don't do an ultrasound on the day of IUI.  My 2 IUI's with Clomid I did the IUI about 24 hours after the trigger and with my 2 IUI's with Follistim, I triggered at night and then did the IUI roughly 36 hours later.

Temp305315937507972

Hmm I have a feeling that we'll do B2B again this cycle but I'm concerned that our timing is off.

ashleyann82

Mey this is what www.fertilityplus.org says:

Q: When is the best timing for an IUI?

A: Ideally an IUI should be performed within 6 hours either side of ovulation ? for male factor infertility some doctors believe after ovulation is better, otherwise chances of success are higher with insemination before ovulation with the sperm waiting for the egg. When timing is based on an hCG injection, the IUIs are usually done between 24 and 48 hours later. Typical timing would be to have a single IUI at about 36 hours post-hCG, though some do it at 24 hours, and some clinics are reporting better results when doing the IUI at 40-42 hours post-hCG. If two IUIs are scheduled, they are usually spaced at least 12 hours apart between 24 and 48 hours after the hCG. Some reports show no increase in success rates with two IUIs, but others suggest it may increase success as much as 6 percent.

Some doctors will base timing of IUI on a natural LH surge. In that case, a single IUI at 36 hours is the norm, but doing them at 24 hours is also pretty common since ovulation may be a bit earlier. When two inseminations are planned, they are usually timed between 12 and 48 hours after the surge is detected.

The egg is only viable for a maximum of 24 hours after it is released.

 

Temp305315937507972

ashleyann82:

Mey this is what www.fertilityplus.org says:

Q: When is the best timing for an IUI?

A: Ideally an IUI should be performed within 6 hours either side of ovulation ? for male factor infertility some doctors believe after ovulation is better, otherwise chances of success are higher with insemination before ovulation with the sperm waiting for the egg. When timing is based on an hCG injection, the IUIs are usually done between 24 and 48 hours later. Typical timing would be to have a single IUI at about 36 hours post-hCG, though some do it at 24 hours, and some clinics are reporting better results when doing the IUI at 40-42 hours post-hCG. If two IUIs are scheduled, they are usually spaced at least 12 hours apart between 24 and 48 hours after the hCG. Some reports show no increase in success rates with two IUIs, but others suggest it may increase success as much as 6 percent.

Some doctors will base timing of IUI on a natural LH surge. In that case, a single IUI at 36 hours is the norm, but doing them at 24 hours is also pretty common since ovulation may be a bit earlier. When two inseminations are planned, they are usually timed between 12 and 48 hours after the surge is detected.

The egg is only viable for a maximum of 24 hours after it is released.

 

Thanks Ashley but that's what I don't understand, if my first IUI is schedule 36 hrs post trigger why did they have me come again the next day which was then 60 hrs post trigger, I think 60 hours is insane! They should have told me just go home and have sex instead of coming again the next day, not to mention a waste of money since we're OOP and B2B IUI are more expensive.

ashleyann82

Yea, it says: When two inseminations are planned, they are usually timed between 12 and 48 hours after the surge is detected.

I would ask your DR because the 36hr thing doesn't make any sense.

Temp305315937507972

ashleyann82:

Yea, it says: When two inseminations are planned, they are usually timed between 12 and 48 hours after the surge is detected.

I would ask your DR because the 36hr thing doesn't make any sense.

I will ask him Thanks

Joyous1106

My RE always schedules my IUI about 24 hrs after my HCG shot, and my charts show my O day as either the day of trigger or day after trigger (and I seem to have correlation from cramps and CM).  I'd be in trouble if we waited longer than 24hrs for the IUI.

kdcc

I'm just curious if you stuck with the 36/60 hour b2b iuis and how it turned out. This is my protocol for my current inject/iui cycle and of course it doesn't seem like the norm. I could only find a few other examples where this time frame was used. I triggered tonight and will have iui#1 at 36 hours and iui#2 probably a few hours shy of 60 hours post trigger. I was debating taking my trigger later than they suggested, but in the end I decided to just follow their orders and trust that their expertise and experience has lead them to use this protocol.

 

Thanks!

inlovewithB

kdcc:

I'm just curious if you stuck with the 36/60 hour b2b iuis and how it turned out. This is my protocol for my current inject/iui cycle and of course it doesn't seem like the norm. I could only find a few other examples where this time frame was used. I triggered tonight and will have iui#1 at 36 hours and iui#2 probably a few hours shy of 60 hours post trigger. I was debating taking my trigger later than they suggested, but in the end I decided to just follow their orders and trust that their expertise and experience has lead them to use this protocol.

 

Thanks!