my period skipped..... help?

Could someone please help me.

My period was suppose to start February 15. its late almost a week.

I was very stressed out for the last 3 weeks, getting married, school, work. so many things were happening at once, and organzing a party for 150 people for my engagement last week.

It could be because of stress. my stomach is swollen, pain right above ovaries, all i want to do is rest.

maybe also for the alst week, my sleep patterns were crazy, and i only slept 4 hours for the whole week

also i was with my fiance' last week, we were 'together" but not really. meaning we never had intercourse, but we foreplayed and humped. we were both with underwear, and ive never had sex ever, im still a virgin. but could it be that i am pregnant? please tell me no?