i lost my vaginity a week ago with my boyfriend, we're steady and pretty serious as we've been together for over 7 months now and its not the fisrt time ive been out with him. anyway, we used a condom but it was too big for him, we're only 14 after all. but because it was too bigg it kept slipping up a bit and i think it leaked quite alot as we carryed on after he'd cum. i was feeling very sick yesterday morning and reaching over the car on the way to school, mum asked if i could be pregnant i told her no i used a condom. but now im getting worried as im experienceing bad stomach aches and i feel sick and dizzy a bit all the time too, if i move in a car or anything i get travel sickness which has never affected me before, could i be pregnant?