that isn't bac water, it's pregnyl solution.
Throw that out and order a vial of bac water, and a sterile vial. You can get that from gpz
You'll want to draw out 1ml of the bac water and put it in the amp and let it mix up, then draw that solution and add it to the sterile vial. Then add in the appropirate amount of bac water to get the mg/ml solution you want to use.
As far as using it during your cycle, Lots of people do different things. Some use it throughout their cycle, others will take some half way through the cycle, and then again last 2 weeks of cycle prior to pct, and then some will take some when they start to notice atrophy, and then take some ever 3-5 days throughout until pct.
Did I confuse you enough? LOL