Okay, so the HCG vial I have holds only 3ml. I don't have a mixing vial so currently I have 5,000 I.Us in 3ml of bac water. Is it ok to draw and inject as it is? Or should I purchase a mixing vial and draw the 3 mls and then add another 2mls to the mixing vial? Also if it is ok as is how many I.U would I have on the slin needle? Help is greatly appreciated =)