I want to run hcg for 19 weeks (week 1-17 250iu 2x/wk and week 18-19 500iu 2x/wk) and doing the math that's 10500iu total. if hcg comes in 5000iu packages, would I need to mix it all at one time, it would go to waste? I would only need 250iu per shot. I could pre-load the syringes and store them, but I read they are only good for a month. Am I missing something? how do you run small doses of hcg for a long time?