It depends on the guy doing it.Example: 2 times or more but usually 2 to 3 times.
Have sex as many times as you want. As you are taking Clomiphene, this should trigger your body to ovulate, so having regular intercourse will increase your chances of conception occurring.
You only need to have unprotected sex with an infected person once, then you are at high risk of contracting HIV.
I don't think that you can die from having to much sex, you will just get really tired at one point and then stop.