Hi, Nocturnal emissions are most common during adolescence and early young adult years. However, nocturnal emissions may happen any time during or after puberty. The emission may happen with or without an erection and it is possible to wake up during, or to simply sleep through, the ejaculation. The frequency of nocturnal emission varies tremendously. Actually these night falls are normal and no medical treatment is available for these. Either you are too much focusing on the sex or you are not masturbating to do voluntarily ejaculation. Regards.
don't worry about it, but stop looking at the porn