two missed periods

[misscrocodile]

im 17 and me and my boyfriend have not had intercourse but still messed around. my breasts hurt alot but i have not had any symptoms of nausea or anything like that. i've taken two tests and both have been negative but still i have not gotten my period. my last period ended august 4th. since then i have not gotten it. im in volleyball i lift weights i do stress but not too much. what can possibly be happening w. my body?

[krissyy]

i wouldn't worry about pregnancy if there was no penetration.  when i was a teenager, my period was pretty irregular.  i was actually put on bc pills to regulate my periods.  i was also an athelete and was underweight.  have you always had irregular periods?  are you underweight?  i would sometimes go 8-10 months w/o period.  at age 18 i went in for my first gyno visit and they put me on bc pills for regulation.  i took levlite for 11+ years and now stopped to try to have a baby.  you are at the age that you should probably start to see a gyno.  best of luck to you!

[joker_81us]

Since you are lifting weights and such your body could be reacting to that,If you did not have intercourse then there is a very slight chance that you are pregnant,but if it makes you feel better wait a week and test again and if you get a neg. go to  the doc and ask them