I am male 27 years, I am not sexually very active but active in inter course in fortnight and active by masturbate but many times or can say almost every time I suffers with premature ejaculations, is it normal or its a disease. Please guide, ejaculation period for first time is in 30 seconds to 2 minutes and for second time it is 3 minutes to 5 minutes and for third time it is approx 8 minutes.