16 and pregnant?

My boyfriend and I start being sexually active again about a month ago doing it sometimes a week but not so much. Anyways.. my period is 6 days late and im getting kinda nervous. We’ve taken a test before (negative) but now it’s been 2 weeks passing the days my period should’ve been. I’ve had irregular periods all my life but not this late. I noticed I been wanting to eat more but im thinking im just stressed or something. Please help what should I do

(Yes we always use protection)