I'm just a little confused. I have a scan on July 9th to figure out my due date. All of my apps are telling me that I am 6 weeks pregnant today. I had my period may 12-13 (only lasted two days). I had a positive ovulation test on May 21 (cycle day 10) I'm given a dies date of feb 17th if I go by my last period.... If I go by when I ovulated I'm given a date of feb 11th.... So I'm confused ESP since I ovulate so early on.