Getting Nervous 1st Time

On CD12 GonalF injections and today's ultrasound  shows 3 follicles at 9mm 10mm 12mm. Trying to get to 16-18mm. I think we are gonna pursue the 12mm and hoping the other 2 gets on a growth spurt. By next week crossing fingers on the trigger shot and IUI. I haven't been tripping since I started but it's catching up just afraid of dissapointments..  I know I shouldn't think like that but shit got real when he said I had a 12mm and growing. I hope it works out but just nervous! 😒