No period

So I started birth control on November and Dec.28-Jan.1 was my last period and it was very lightly stains. Previous to that I had gotten my period twice that month but I’m a regular. I’m 8 days late, but got a negative pregnancy test 2 days ago and today as well. I’ve been nauseous and eating more often but I believe it’s from stressing waiting on my period.

Suggestions? Is it normal since it’s been a few months with bc? Is there a way I can naturally bring my period, I feel uncomfortable being late😂