Trying to conceive

Miss

Hi all just wondering has this happened to any of y’all I’m trying for a baby I had a miscarriage 12 weeks ago and I had a d&c so I started trying again and this month I started tracking my ovulation dates so I really taught it was the month, so I’m six days early I’m due my period on Sunday so I decided today I wanted to take a pregnancy test but it came up not pregnant do you think I might be too early to come up that I might be pregnant?? Thanks all