sort of juice - it's not mg but ml though (mg is weight, ml is volume) just to keep everything correct here..
I just started HCG a few weeks back and I went with 5000iu's so I mixed it with 5ml to make the same strength medicine as what you have. I decided to go with insulin pins though and pre-loaded 16 (IIRC) with 300iu's each. As Alloy said, the insulin pins are 1/2" long x 29g and take 1cc (or 1ml) of liquid. Makes measuring out 300iu's or .3ml easy. Took a while to load them all but when it comes to injection, it literally takes 1 minute between walking to the fridge to grab the pin, swab, then stick in the abdomen SubQ.
One thing that I did notice for the first week is that I felt like sh!t like I had a stomach flu. Came a day or two after my first inject and lasted about a week so I don't think it was the flu. Seems to be better now. Reading up on the net finds some people have similar reactions (apparently HCG is what rises massively when a female gets pregnant, and it's this rise in HCG that causes morning sickness).