you are using almost 1k test a week, so you prettey need HCG,
the usual protocol is to inject 1500-3000 ius every 4th ot 5th day, for a duration usually no longer than 2 or 3 weeks,
if you were coming off a cycle of test e, test level in your blood will likely stay ekevated for at least 3tp 4 weeks after your last injection , taking hcg on the day of your last shot would therefore be useless.