Cud i be pregnant?

On friday my bf put his ***** up mine, but he didnt come, it was only for a few seconds i know that i was ovulating around that time! the other day i was at college and i felt so dreamy, i wasnt with it n i felt all hot and bothered, people kept asking me what was wrong with me, ive been getting twinges in my stomach, n feeling a tiny but nauseated and dizzy!! and come to think of it emotional too.