IRREGULAR PERIODs

Hey Ladies! So I’m new to this APP but could really use some insight. So my periods are irregular and have always been irregular; however, I’ve never been this late. I’m on day 50 of my cycle and still no period. The latest I’ve gone is to day 46. I took a test last night and it was negative. Should I wait or take another one? I’m also experiencing increased appetite. Like soon as I finish eating I’m hungry immediately after. I don’t understand.

Side note: there was one time when I was in high school (10 years ago) that I went 6 months straight without a period.. that was just one time though) insight please!