i am 19 yrs old virgin.me and my boy friend are enjoying oral sex. but some times we had sex without penetration with me having pantie and he had no clothes.he used to rub vagina which is under pantie with penis.I get white continuously.once he ejaculated his sperm on top of wet pantie.i think his sperm doesn't touched my white on pantie.but i am tensed whether there is any possibility of becoming pregnant.can u give me possibilities of occurring pregnancy and methods to cure quickly...