Trigger shot for FET

[evenkeeled]

Did others have a trigger shot for FET? I do not and thought that was odd. I did confirm no shot so not misunderstanding anything. Anyone know why there isn't?

Thanks!

[emmuffy]

I don't think there is a trigger shot for FET. Your ovulation is suppressed, and no eggs are supposed to be released, which is the purpose of the trigger shot.

[mrsmcsmith09]

I just did a trigger Friday night. I thought it was totally odd too but I was told the reason was to simulate a real cycle so the trigger will give your body the hormones like you ovulated.

[lovegrilledcheese]

I am having my transfer Friday but I won't be doing a trigger shot.

[evenkeeled]

Mar 30, 2015 7:40:10 GMT -5 emmuffy said:

I don't think there is a trigger shot for FET. Your ovulation is suppressed, and no eggs are supposed to be released, which is the purpose of the trigger shot.

But this is the same with Fresh since they already retrieved the eggs . . . . yeah okay you are right I didn't have a trigger shot for the ET with that. 

I thought I saw others who have triggered. Interesting. 

[bootsorhearts]

With a fully medicated FET cycle (which is the norm), you wouldn't do a trigger as ovulation isn't needed and you are being given progesterone so your body doesn't need to make that either.

With a 'natural' FET cycle, a trigger may be used so they can nail your ovulation date and get the timing down. Otherwise you'd have to have daily ultrasounds to pinpoint ovulation to get the timing of the transfer right. With a natural cycle, there may still be progesterone supplementation and you don't need the eggs but they're relying on your body's own ability to prepare your uterus vs. simulating with replacement hormones.

I didn't explain that very well, but that's why some people do a trigger with an FET and others don't.

[Sha259]

There is no trigger during FET, specifically because the intent during FET is to prevent you from ovulation, not to induce it (which is what a trigger does) say before an ER during a fresh IVF cycle.

You will however, either begin daily PIO shots, or multi daily P4 suppositories to fool your body into thinking it has already ovulated and thus, prepare itself for implantation. I'm doing that as we speak!


ETA: the important bit here is whether your body does or does not need to think it ovulated, and when. For most fully hormonally supported FET cycles (such as my current cycle), I am being fully supported by the hormones I am taking (E2 as Del Estrogen and P4 as Progesterone in Oil) so that my lining will be at the appropriate thickness, and then ready for implantation. Therefore, I technically do not need the normally naturally occurring E2 and P4 that is produced during my natural Menstrual cycle.
There may be REs that intend to also utilize your bodies naturally produced P4 by choosing to trigger you and then time your transfer to coincide with the appropriate P4 levels produced by your body following that trigger. Of course, the intent is slightly different than that of a trigger for ER, as they are not interested in the egg/s you produced, but with the hormones your body makes afterward. I think this is more along the line of what people would call a "Natural Cycle" FET. Not sure, as I have never done one.

[berries555]

For FET, my RE refers to the HGS shot as "supplemental" HGS. The additional hormone is supposed to help implantation.

[mrsmcsmith09]

Mar 30, 2015 10:45:08 GMT -5 berries555 said:

For FET, my RE refers to the HGS shot as "supplemental" HGS. The additional hormone is supposed to help implantation.

This is the same for me.

[bex2cool]

Mar 30, 2015 10:07:26 GMT -5 Sha259 said:

There is no trigger during FET, specifically because the intent during FET is to prevent you from ovulation, not to induce it (which is what a trigger does) say before an ER during a fresh IVF cycle.

You will however, either begin daily PIO shots, or multi daily P4 suppositories to fool your body into thinking it has already ovulated and thus, prepare itself for implantation. I'm doing that as we speak!


ETA: the important bit here is whether your body does or does not need to think it ovulated, and when. For most fully hormonally supported FET cycles (such as my current cycle), I am being fully supported by the hormones I am taking (E2 as Del Estrogen and P4 as Progesterone in Oil) so that my lining will be at the appropriate thickness, and then ready for implantation. Therefore, I technically do not need the normally naturally occurring E2 and P4 that is produced during my natural Menstrual cycle.
There may be REs that intend to also utilize your bodies naturally produced P4 by choosing to trigger you and then time your transfer to coincide with the appropriate P4 levels produced by your body following that trigger. Of course, the intent is slightly different than that of a trigger for ER, as they are not interested in the egg/s you produced, but with the hormones your body makes afterward. I think this is more along the line of what people would call a "Natural Cycle" FET. Not sure, as I have never done one.

Your wrong. That depends on doctors protocol. We triggered yesterday and will have frozen embryo transfer on Friday. Our doctor wants to control natural cycle, to time optimal chance for embryo to attach to lining.