My dr. suggests the same thing. He won't do 2 IUI's in 1 cycle. He says his experience is that one well timed IUI is just as successful as 2, and the 2 IUI's per cycle do not increase your odds of pregnancy.
My doc. also doesn't think the HCG shot is necessary. It would make me feel better to see those follicles and have that shot. But, he said it is just a visual to give the patient confidence, but doesn't increase likelyhood of pregnancy making it not cost effective. There are lots of other opinions on this, so ultimately you need to make the decision and fight for what you are comfortable with.
Your FSH is a little high. It'll make it more challenging to get pregnant, but certainly not impossible! I'm suffering from the same thing! cd 3 FSH 16!! What is your age?
If you are ovulating on 100mg you do not need 150mg. Clomid helps you to ovulate not necessarily produce more follicles.
I am on injectables with IUI. My RE only does 1 IUI. I have heard several people on this forum that do 2. My RE also does the HCG...but that is mostly because I am on inectables. He never offered that as a possibility when I was doing Clomid.
Good luck to you!!