I got some pregnyl HCG 5000 iu in one amp and 1cc amp of solution. I mix the 2 together it will last for 30 days in the frig. The question I have is the slin 29g pin is 1cc or 100ui if the HCG is 5000iu per 1cc then how many units on the slin pin will equal 500iu I shoot the HCG every 5th day. Sorry I never used pregnyl before so i do not know how to dose it on the pin?