Period werid ? month of june?

ok june 11 my bf and I were messing around and we didnt even have sex but he waz on top of me and he had boxers and shorts on ! and i just had my undies on then two weeks ltr my period came and it waz heavy first day then med the nex two days can i be preg! or jus me and lack of exercise of myself and will my period be normal next month