 [ Symptoms ] i recently had unprotected oral sex with ex boyfriend he ejaculated in my mouth but did not swallow used mouth wash i used mouth wash after he is hiv negative and gives blood a few times a year with red cross i heard red cross say that he was ok to give blood i am also negative with hiv is there any risk [ Disease ] the risk of contracting hiv through this one episode of oral sex assuming you are both hiv negative is nil