Guys I'm wondering if it is possible to miss your period completely?

I am late by 10 days, I have done a pregnancy test which came out negative?

When should I test again? This is stressing me out!!!

UPDATE:

Still nothing.... i thought i was getting period pains but I'm not sure now ugh

SO UPDATE GUYS!!!

I got my period. After 3 months... and a couple of days.

At least it happened! Thanks for all the advice!