Tweet4-5 months is not that long of a cycle. Pretty typical to see any cycle for 3 to 5 months, so I'm not sure why you would want to bridge with HCG during that?? But to answer your question there is no reason to bridge with HCG during a cycle for that length of time. You'll be better off taking the HCG right before you start your PCT.
What cycle did you have in mind?