IVF - Follicle size before trigger?

Ami

Hi! What was your dominant follicle size when you were told to trigger before ER?

My Dr told me I'd likely be triggering tomorrow but now they're telling me that I might need an extra day - my dominant follicle was about 15.6 mm this morning. Wondering if anyone else had similar size the day before trigger or if they're still too small.

Thanks!