I am 36 years old male married since 6 yrs. We are trying for a baby since many years now. We consulted many doctors but all the reports seem normal. We are about to start full fledge infertility treatment now. Have a question in mind about delaying ejaculation with start and stop technique. I heard that due to this technique sperms get killed causing unsuccessful Pregnancy. Is it true and if true is this causing the problem.