Have you used the same drugs in the same way each time?
For the long down reg protocol you start Synarel or Lucrin at 7dpo (or CD21) in the cycle before your IVF cycle and continue it until EPU (egg pickup). You may or may not have used BCP earlier that cycle. You start FSH (puregon or gonal-f) injections early in the IVF cycle and continue that until EPU too.
For an antagonist protocol, you don't start any drugs in the cycle before the IVF cycle. When your IVF cycle starts (with AF) you start FSH injections around CD1-4 and when the follicles reach a certain size you start the antagonist (eg Orgalutran) to prevent you ovulating before EPU.
In both cases you'd have a trigger (hcg - eg Ovidrel or Pregnyl) shot ~36 hours before EPU, then EPU, then transfer and then start progesterone (you might start progesterone between EPU and transfer for some clinics). You may also have hcg booster shots during the 2ww.
There's also another protocol (flare protocol) which has you starting Lucrin at the same time you start FSH injections.
So, essentially, the difference between all the protocols is the method of suppression (Synarel vs Lucrin vs Orgalutran) to prevent you ovulating before your EPU.
Lairdoz, I've done pregnyl booster shots (lower dose than for trigger) during the 2ww for two of my IVF cycles. My understanding is that our bodies metabolise hcg to produce progesterone and so it helps that way. I think there might also be a theory that it makes the body more receptive to an implanting embryo by making it think it's already pg (affects the uterine lining somehow). It's fairly common, I just don't understand why they do it that well.







for Tues and have a great day on Sunday. See you in the 2ww for a day at least!
Trying to keep myself busy....5 days to go! But I just wanted to ask a question....has anyone had AF delayed by Crinone? I had it on my 1st cycle but only 1 a day and AF came before BT. This time I am on 2 a day plus it has been a shorter cycle?? Would love to know what you think. Stay strong girls xxx


Gosh I remember last month when I was getting closer to my EPU date, I was terrified, now I'm sooo jealouse and want it to be me!!!!
Woohoo foe AF!!! I hope you get a spot in this month, you have to!!!!
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