Hello dear, Thank you for your contact to health care magic. I read and understand your concern. I am Dr Arun Tank answering your concern. Ejaculation period varies from person to person. But it can normally ranges from 5 to 15 mins or more in some cases. As your BF is drunken at that time and you felt warmth inside it is likely to be ejaculation. So you can planned accordingly. In drunken people ejaculation time decreases so probability of ejaculation is more in your case. But you should not worry as every ejaculation won t make someone pregnant. If this incidence is neat to your ovulation period than it is the matter of worry. But you should test your self for the urinary pregnancy test after a two weeks or so. I will be happy to answer your further concern on bit.ly/DrArun. Thank you, Dr Arun Tank Infectious diseases specialist, HCM.