HCG dose for fertility while staying on TRT (100mg testosterone cypionate/week)?

I’m on TRT (100mg testosterone cypionate/week) and considering HCG to improve fertility without stopping TRT. I felt like complete garbage when I used Clomid instead testosterone, so I don’t want to stop TRT.

If you conceived or improved sperm parameters while staying on TRT:

What HCG dose and schedule did you use?
How long until you saw results?
Were you able to conceive naturally?
Did fertility recover while remaining on TRT?