has stress ever caused this late period ?

4 negative tests

my period is 10 days late today.

my boyfriend was in the hospital for 10 days and i’ve been so stressed that it’s caused me to lose my appetite cry alot and not sleep or eat that well etc. i’m having some nausea but it’s basically gone away since he got discharged friday. still having pms like symptoms though. i took a test monday, tuesday, thursday, and today which is sunday. ALL NEGATIVE! my periods are irregular without birth control even though i’ve got it the last few months being off of it but not this month. i started a new pack today because i need it to come on. i’m hoping i’m really just negative but i’ve been wanting to get checked out at an urgent care just to see if it’s something else or what.