Now, if I were in your position I'd ask a doctor, more specifically andrologist, which is basically an urologist that has a specialty in fertility, subfertility, and sterility. They would better advise you of what would be the best procedure to ensure you are fertile later on without any complications to your little swimmers. At first glance of the few supps you listed, I would think that just sticking to your clomid at your current every three day dose while adding the HCG to help with your natural testosterone levels which would help assist a more vibrant libido. I wouldn't try to suppress the estrogen too much as it is still needed to help in maintaining somewhat a healthy libido. But, like I said, try to find an andrologist and be open and honest with them if this matter concerns you this much. They can better help you better decide what is the safest route at your age. Good Luck! I'm sure you will make a great dad one day!