Help!

Last month my period was 2 days late. I was experiencing nausea and I was throwing up. I took a pregnancy test and it was negative.

(I did not take it in the morning.)

This month my period was supposed to be here on the 24th and still hasn’t came. It’s the 27th now. I had nausea a couple days ago and have been very gassy and bloated since.

Should I take a test or could it be my period being weird ?