How early to test?

Sara
The last 4 periods I've had, have been around 22-25 days apart from the start date of a period to the start of the next. This one hasn't started yet... It's been almost 30 days now. I took a test last week on the day I thought I was going to start. Then again yesterday. Not experiencing any symptoms like I did with my son early on, so I'm thinking I'm just late, but was curious as to how early you started testing and when did it show positive. I know when I got pregnant with my son, it took over a week after I found out via blood test, for a home-pregnancy test to show a positive result. So ladies, when did your positive show up? How many days past your expected period did you get your BFP?