What do you all think is going on? Anyone experienced this before??

Sabrina
So this month I didn't have my normal PMS symptoms. I always have clear discharge 2 weeks before then extreme fatigue and breast tenderness the week before. I looked at my tracker because I was going to the store and thought I would pick up some tampons and it says I was 4 days out at the time. Now I'm 3 (almost 4) days late still nothing besides constant back pain and headaches which are not normal for me. I told my bf about my cycle being late and he told me not to worry because I always do this to myself when my cycle is off. Which is true but this time feels different with the absence of PMS symptoms especially since I have always had them since my first cycle 8 years ago.