I have my HCG and have some slin pins. I was wondering something that I ran across. My slin pins are terumo .5" 29g. Does 1cc=100iu? I'm supposed to be taking 500iu EOD, that would mean 5cc EOD? Can someone help me with this? Also I'm currently taking letro for my anti-estrogen, will this cause a problem with the HCG? :scratch: