I finished my period may 29 i was supposed to get it 6 days ago and still nothing, i took a pregnancy test and came out negactive what does this mean?

It happens sometimes: In a woman with regular periods, some causes of a late period (other than preg.) include: excessive weight loss or weight gain, increased exercising, emotional stress, having an illness, traveling, medicines (like birth control pills), hormonal imbalances, etc… If symptoms are persistent, recurring or worrisome, one can see her Ob-Gyn doctor. She can also repeat a pregnancy test one week later.