is there any risk if my bf had no underwear and i had underwear and pad on since im having period and we were dry humping some of his pre cum came on my underwear on the outside but i was wearing pad nothing came on me and that precum spots dried on my underwear also i gave him oral twice some semen came in my mouth and on hands i wiped and cleaned with hand sanitizer every time after some time i went to bathroom to change pad i washed hands with soap thorougly wiped and then used toilet paper to clean vagina and changed pad. theres no risk of preg right?