Steps after ultrasound and clomid 3-7??

Ra

I took two months of clomid a few months ago and had to take a break because I lost insurance due to changing jobs. I am going back on clomid 50mg and this time my obgyn wants an ultrasound (scheduled at cd 12 - since cd 13/14 are over the weekend).

I know they are looking at follicles but what’s next? Do I request a trigger shot if they see something specific (which I’m not sure what that would be) or just let things play out?