Should I take a pregnancy test?

Cierra

My husband and I have been trying for quite some time now to have a baby. This year I made a goal to keep track of my periods, ovulation day, moods everything. I made sure we were very active the day of, the day before and the day after my ovulation day this past month. I was suppose to start my period 6 days ago. Still nothing. However I don’t feel any different. No signs or symptoms besides my missed period. When is the earliest I can take a pregnancy test?