hi..thanks for writing.. i have understood your concerns.... so. it is a erectile dysfunction you are facing..in a young sexually active male, this problems are usually due to psychological reasons..like.. 1. anxiety about the sexual performance after repeated failures.. 2. anxiety about partner s satisfaction 3. feeling shameful and guilt, for your failures 4. anxiety has became chronic from the occasional one once u have failed it caused u a anxious feeling and u started thinking about the future encounters..which further increases your anxiety..finally anxiety becomes chronic and u ll be distracted while sex and u loose erection early...this continues as a vicious cycle... u just forget that u have any erectile dysfunction and start from the beginning.. while sex u shud also concentrate on foreplay, instead of only penetrative sex..lack of foreplay during the sex can also be a cause for erectile dysfunction.. there shud not be marital disharmony and misunderstanding between the couples.. u both shud undergo for sexual therapy by a sexologist and for counselling [dual sex therapy]. this therapy will teach u everything about the art of sex... u can learn about foreplay and the erotic art from the porn movies also..there is nothing wrong in watching them.. when u have dealt with all the psychological issues and even after that u have erectile problem then only u can go for drugs. if u have high anxiety related to sexual performance then u can take tablet clonazepam [0.25 mg] half an hour before sex..this will help u in dealing with your anxiety.. as a last resort u can take viagra..for long erection ans sexual pleasure when all attempts have failed.. viagra does not have any side effects on your upcoming child, it is safe..there are few side effects of it may have on you..u can read it from the internet.. i hope u ll find this advice helpful..best luck..