period changes when i go to college, mom is against BC

Hi,
Welcome to ehealthforum,
There can be changes in your period and hormonal pattern due to changes in stress levels, diet changes, lifestyle changes, place & environment changes. Although irregular periods are associated with anovulatory cycles (menstrual cycles without periodic egg release from ovary), chances of occasional ovulation is possible. If you had been sexually active without protection during ovulation time, chances of pregnancy cannot be ruled out. Do not depend on appearance of symptoms alone to suggest pregnancy. Few women can experience all the symptoms, whereas few women do not experience any. If you suspect chances of pregnancy, consider visiting your doctor/gynecologist at the earliest for thorough examination (to confirm pregnancy related changes/signs in body) and blood/serum HCG level test (to confirm/rule out pregnancy accurately). If pregnancy gets ruled out, and if you are not ready for pregnancy, but intend to remain sexually active, you should consider visiting your gynecologist to get started on suitable regular birth control measures to be protected (after your periods). It will also help to regulate your periods. Be regular with birth control use as instructed. Avoid having unprotected sexual contact if you are not ready for pregnancy.
Take care.