4 days late

Kaylee

I’m currently supposed to be on my period, but instead I’m 4 days late. I have been sick the last 2, & late last night into this morning I’m feeling very nauseous. I am sexually active, so I took a pregnancy test & it was negative. Another thing is I have this feeling of a rock in the pit of my stomach any time I eat.

Any advice??? I’m at a loss & I need to know if it’s worth the money to go see a doctor.