My doctor had me come in on cd 12 for a mid cycle scan to see size of lining and follicles. She wanted them a bit bigger/thicker so I came in again on CD 14, got the trigger shot, then got my peak on CD 16. Your body may been a higher dose of letrozole and a trigger shot to initiate ovulation. As well as the mid cycle scan to see if meds are working how they should! I would contact your doctor to let them know what’s going on and see what they want you to do. They may have you go in asap for bloodwork or scan to see what body is doing. Best of luck!! 🥰
My doc told me after you get positive ovulation 7th day you should do your blood work. If you didn’t get positive ovulation by the cd21 inform your dr