Sorry, just realised you said UNreconstituted. Yes, more than likely it is fine.
If your really worried you could buy a bunch of pregnancy tests and find out what concentration they detect hCG at (most are about 25 miu/ml.)
So if you reconstitute it with 10ml bac water your vial will be at a concentration of 500iu/ml. Get 200ml of tap water in a bowl and add 5 iu of hCG to it (or 0.01ml or 1unit on a slin pin.) This will give you a concentration of about 25 miu/ml. Put your pregnancy test in it and see if she comes back pregnant. If it does, good to go. If not, try playing around with slightly higher concentrations - it can be difficult to get the concentration exactly right so allow for mistakes.
Hope this helps.