Follicle growth: Day 5: 8-12 mm

Can someone help me understand and tell me how was your process and progression???

I just finished my 1st ultrasound appointment after 5 days of medication. I have 4 total (3 left and 1 right) follicles on my baseline.

Today, I had two measure 12 & 10 while the other 2 are 7 and 8mm.

Is there a particular size they want prior to extraction?

Does the size mean lack of possible mature eggs?

My next appointment is Friday for another ultrasound should I expect them to double contingent to how my body takes the medication.