Ovitrelle given for FET due to growing follicle - anyone had similar situation

[ttcsolomummytobe]

Hi all, Sorry for another question so soon after Friday. I have had my second FET scan today, CD12.

I've been on progynova 3x2mg since CD 2. My lining has only increase by 5mm since my scan on Friday, the nurse isn't worried about this as said it looks as it should and is above the 7mm but I now have a follicle at 15.5mm which they are concerned is recruiting. They took some bloods so will get a call later with the results and they gave me an ovitrelle injection which she explained if I need to take it would force ovulation, which I understand breaks down the womb lining but she said the ovitrelle will replace that and I could go ahead with the FET, waiting on a call later with more info but just wondered if anyone else had the protocol? Is it a standard one?

Originally there was no plan for a trigger so feel alarmed by the fact they are forcing ovulation when really they want to avoid that.

Anyone had this and had a successful outcome?

As always thanks for replies, just a little anxious with the unexpected steps.

[ttcsolomummytobe]

Sorry, to add I have seen that ovitrelle is used in FETs when done a quick Google or read other people protocols but didn't expect it to be added in one it wasn't planned for so just curious

[DianeArnold Partner Nurse Fertility Network UK]

Hi ttcsolomummytobe. We used to like a lining over 8mm and leadings follicle over 17mm. Anyway I’m sure your clinic is watching you carefully. Good luck. Diane

[ttcsolomummytobe in reply to DianeArnold]

My clinic didn't want me to have any leading follicles as they don't want ovulation to happen, they said the lining could breakdown before ready to do the FET. The fact one has grow to 15.5 mm is why they are giving me the ovitrelle, but it wasn't part of the normal plan which is why it concerns me a little.

When ovitrelle is used in a FET does the patient then have a day 5 embryo transferred 5 days later? Is progrestone pessaries still used for the 5 days too?

[DianeArnold Partner Nurse Fertility Network UK in reply to ttcsolomummytobe]

Hi. All I know is that when the lining is thick enough, the ovitrelle will trigger ovulation or the LH surge from the collapsing follicle (corpus luteum) which then induces the lining to stay thick for implantation. You might be told not to have unprotected sex for risk of multiple pregnancy. Diane

[Masief]

It sounds like you're being switched from a medicated round to a natural modified FET. The bloods will give them an indication of whether ovulation is imminent. Usually on a natural FET you don't take anything and they monitor your lining and follicle until you're ready to trigger (or naturally ovulate) then they will tell you when to start progesterone based on your embryo and plan transfer 5 days later if you have a day 5 blasto. It's my preferred protocol, good luck!