Ejaculation after sexual activity depends upon how quick you reach orgasm and whether both you and your partner must be satisfied after the intercourse and also there must not be early ejaculation only in certain situations where there is stress and performance anxiety like fist time sex or a quickie where there ars chances of being caught . If the problem is not due to these reasons then there must be other causes to be ruled out like effect of drugs or a psychiatric disorder the management usually consists of squeeze tchnique , relaxation exercises and drugs usually ssri which delay ejaculation common drugs used are fluoxetine, duloxetine and latest depoxetine.