Possibility of pregnancy ?

My boyfriend fingered me . I gave him a handjob and he didn’t finish but then a while later I went to rub his dick and he was soft even tho he was fingering me . I asked him if he came and he said he had. He may have touched his dick or something after he came . He obviously didn’t finger me with a shit load of cum on his fingers but just wondering the possibility if there was a small bit of cum or precum