I'm late

Christina
After using this app for maybe a year doing it correctly and logging daily it's always accurate for when my next period will start. I am officially one week late today the last time this happened was maybe last year and I took a pregnancy test (negative) and then got my period the next day. I'm so anxious, should I take it or wait another week? I don't have period symptoms like I had last week when I was suppose to get it. And we have been TTC since May of last year. Any words of advice will be appreciated. Thank you