Hi there. I am scheduled to have an IUI on Saturday. My concern is the timing of the trigger shot. My understanding is that if I have a LH surge BEFORE the trigger, then there is no point in doing the trigger shot. Is this true?
Normally I ovulate on day 12 or 13, and my follicles have never been above 20mm, on monitored cycles. My endometrium measured 6.2 on day 10 this cycle - it has never been greater than 7.2, even as late as CD13. I did not have my normal RE this month, and I am concerned that he doctor's decision was not the correct one for my case.
This month I took 5mg Letrozole CD3-7. Ultrasound on day 10 (Tuesday) showing one follicle at 16mm and one at 17mm. Based on the follicle size, they scheduled me for IUI on Saturday morning (CD 13), with a trigger shot at 8pm Thursday (CD11).
Because of my concern, I have been doing LH tests, hoping that my surge would be delayed until after the trigger shot. So of course, I got a positive LH test this afternoon around 3:00. I'm not to do my trigger until 8:00. I called the clinic and the receptionist told me that if the nurses did not advise me to be checking for a surge, then i should just disregard it all together.
Could you please explain how the trigger shot works, what it does, and if it is effective if taken after the LH surge?
Thank you so much!