Hi Trish
Last cycle I had synarel twice a day. I was told not to have it at all on the day of trigger. This time, I was on Lucrin. Ordinarily, it would be the same - don't take it on the day of trigger. But, because my trigger day was the day I had the ultrasound (when they decided they needed to do epu in a hurry) it was too late. I'd already taken my Lucrin that morning. But, the nurse said it didn't matter. I ended up with 3 eggs from the 3 follies. They resulted in 2 healthy embryos.
So, the upshot of all that is.....I don't think you're gunna stuff it up. If the nurse said not to take it, don't take it.
I feel for you. The confusion can drive you around the twist. Do they have an after hours number? You're paying them enough. Ring 'em. It's your body after all.
Take care
Love
Sue