I found out at 3 weeks 5 days. First response and clear blue both picked up I was pregnant 6 days before my missed period.
You can take ept I had a positive two days before my missed period
At least 7 to 10 days after a miss period. Sometimes when we are under stress we can miss periods or we can miss periods because of any other changes in our bodies.
I'd wait a week after your late, it's too early to take one if you have only just missed your period by a day or two, it took mine a week to show xx