Are you asking about HCG as an adjunct intra-cycle additive to mitigate HPTA suppression?
This is the exclusive use it is discussed and recommended for in bodybuilding circles - and it is very effective, although it does carry its own baggage regarding side effects.
It is principally meant to serve as an aid to run concomitantly with anabolics in order to maintain your own testosterone production as it would usually be heavily suppressed and negatively modulated due to exogenous hormone usage. This is in effect an anticipatory cautionary measure, and has eventuated excellent results for countless learned athletes over the years it has become a staple intervention in AAS administration.
You can seek out several threads and hundreds of links with a Google search, and it can also be sourced quite easily online as it is a gray-area type drug that can be grouped in with research ancillary chemicals and isn't illegal.
As far as female usage, I'm entirely unsure - but believe the fertility mentioned about is accurate.