If you followed the instructions on the home test and checked the results right away, then the result should be accurate.
With the first test, if you left it out for any length of time, it could give you a false positive result.
With your recent negative result, did you test first thing in the morning or later in the day? First morning urine is the most concentrated.
As for the website, just put it in your reply. "I found this great website
www.whatever.com" This will activate the link automatically so that anyone can click on it and the page opens.
Warmest regards,