I am missing my interval!?

Its been one week in a minute since my due date that i have not received my extent.i am sexually active and i am afraid that i may be pregnant.
but in opposition i already did 2 home pregnancy tests and both come out to be negative.i never missing any of my period before and they have been on the dot...
can u plz give me suggestions and give a hand me out!
Answers:

I have to loose 35lbs by July 7. What the best technique?

See your doctor. Maybe you're stressed out or something, that can mete out your period to halt. My time of year stopped for 9 months when I was 15, but the doctor said it be due to stress and she gave me some pills and it worked.
So, jump see a doctor.

A question for women.?

when i be 14 my periods stoped and i wasnt pregnant they freshly stoped for 8 months i wll go and see a doc if i be you

What are the chances?

see a doc

Why do girls smell resembling fish when they are on their period?

are you really physically helpful right now? Like working out at the gym everyday or going running? Because I forget what it's call but my track coach told me there's a chemical within our boobs and butt and when you really workout it gets used up, and that chemical have something to do with our time of year so it stops. If you are than you have nil to worry roughly, it will come on an irregular cycle probably for the time-being until you stop your workouts, or your body becomes used to it. The same point also happens beside stress. So if you've been really stressed lately next that's your problem, hopefully I helped you :] and if 2 pregnancy test have come out denial, I'm sure you aren't!

What kind of problem is this?

You should see a doctor if your not pregnant

Women lone please.?

see your doctor. it just might be some hormonal change.