Having sex is going to decrease your semen volume, if yo do it to much, that's for sure. The fact about this is that you may want to get your wife pregnant and if you do to much sex, then you may have some sort of problems, problems you may not want to talk about right not - the fact is that the males in a couple are very prone to some problems with fertility and because of that you could have problems in the couples. It's not women fault that you have health issues and because of that your semen volume is not good enough - this is not bad enough, but health issues and problems with diet could cause problems with the quality, mobility and motility or the semen and because of that you that egg is not going to be fertilized.

   The fact is that some couples have some sort of problems and they may get embarassed because of their problems - if you are a male and having fertility problems, then you may be prone to having some dissapointing stuff and experiences, until you speak with your wife all about this.

   Basicaly, if you are trying to conceive and it it had passed more than one year, then you're more likely to have some problems (you may not have), and it's good to see a doctor to check if everything is going right :-)

   Yes, having lots of sex is going to decrease your semen production and because of that you may not have the quality of the sperm to get her pregnant, which is a very complicated and nasty thing, if you are in a relation - be sure to speak out all your problems and to visit the doctor whenever you have the time and you really want, not in other time. The fact is that health and eating correctly could not chance the fact you use your sperm to make sex all the days, it can't just regenerate in a moment, so you may have to wait.

   A good thing is to refresh the semen and not to ejaculate for a couple of days to see if the volume is decreasing, this means no sex or masturbation, which is kinda easy if you're thinking that you can do that - motivation is very important and you have to deal with it, if you're going to make something with your life and letting her pregnant.

   Vitamin c, e or beta carotene (found in carrots) are more likely to help you understand and get rid of lower sperm cells and some erectyle disfunction - is something common, there are just to many teens that are having erectile dysfunction and you have to consider that before thinking that you're having a hell life, you're not alone, if this helps.