Good follicle size?

Hi, I’m on my IUI #2 journey, today is CD10 and have 3 follicles.

1. Dominant 18 mm - left ovary

2. 15 mm - right ovary

3. 13 mm - left ovary

4. Lining is at 8 mm

I’m going back on CD12 (2 days) for another follicle scan. And will most likely have the trigger shot that same day in the evening.

I’m guessing my IUI #2 procedure will be on CD13, so 3 days from now.

I’m taking Letrozole and I may possibly will need the trigger shot again this 2nd IUI round.

Do you think the follicle size is looking good?

What are my chances this round?

What are your follicles and dates, so we can compare!

Thanks!