Yes, HGH can cause gyno. It's rare, but possible. It's not an Estrogen issue, it's a prolactin one.

HGH has binding affinity for the prolactin receptor and therefore has the ability to directly promote symptoms of gyno through this pathway. If you find yourself having sides just from the GH, you'll need some Caber, not an AI.

Yes, I'd take those small doses early in the morning, leaving some time between your shot and your Meal 1 (if it contains carbs).

Here is a good read for you on HCG, and it's use:

http://forums.steroid.com/showthread.php?t=398794